
When you ask "What number is halfway between 78 and 469?" 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=469.

To find the number halfway between 78 and 469, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 78 and 469 into our formula, we get:
(78 + 469)/2 = 273.5
Thus, the number halfway between 78 and 469 is 273.5.
To check that our answer is correct, we subtract 78 from 273.5 and subtract 273.5 from 469 and compare the two numbers:
273.5 - 78 = 195.5
469 - 273.5 = 195.5
As you can see, the halfway number is 195.5 higher than 78 and 195.5 lower than 469. Therefore, our halfway between answer of 273.5 above is correct.
Halfway Between
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Halfway Between 78 and 470
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