- Since 4 is in the tenths place, 615.44 is between 615.4 and 615.5
- 615.45 is the midpoint between 615.4 (615.40) and 615.5 (615.50)
- As illustrated on the number line, 615.44 is less than the midpoint (615.45)
- Therefore, 615.44 rounded to the nearest tenth (one decimal place) = 615.4
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