Halfway Between 78 and 427

When you ask "What number is halfway between 78 and 427?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=78 and Y=427.

Halfway Between Line

To find the number halfway between 78 and 427, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 78 and 427 into our formula, we get:

(78 + 427)/2 = 252.5

Thus, the number halfway between 78 and 427 is 252.5.

To check that our answer is correct, we subtract 78 from 252.5 and subtract 252.5 from 427 and compare the two numbers:

252.5 - 78 = 174.5
427 - 252.5 = 174.5

As you can see, the halfway number is 174.5 higher than 78 and 174.5 lower than 427. Therefore, our halfway between answer of 252.5 above is correct.

Halfway Between
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Halfway Between 78 and 428
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