When you ask "What number is halfway between 73 and 478?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=73 and Y=478.
To find the number halfway between 73 and 478, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 73 and 478 into our formula, we get:
(73 + 478)/2 = 275.5
Thus, the number halfway between 73 and 478 is 275.5.
To check that our answer is correct, we subtract 73 from 275.5 and subtract 275.5 from 478 and compare the two numbers:
275.5 - 73 = 202.5
478 - 275.5 = 202.5
As you can see, the halfway number is 202.5 higher than 73 and 202.5 lower than 478. Therefore, our halfway between answer of 275.5 above is correct.
Halfway Between
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Halfway Between 73 and 479
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