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Finding the Fourth Proportional to 627,760.60, 941,640.90 and 416,714.20

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Solution

The fourth proportional to 627,760.60, 941,640.90 and 416,714.20 is: 625,071.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,760.60 : 941,640.90 = 416,714.20 : x
  2. Step 2: Convert to fraction form
    627,760.60/941,640.90 = 416,714.20/x
  3. Step 3: Cross multiply
    627,760.60x = 941,640.90 × 416,714.20
  4. Step 4: Simplify right side
    627,760.60x = 392,395,134,330.78
  5. Step 5: Solve for x
    x = 392,395,134,330.78/627,760.60
  6. Step 6: Final answer
    x = 625,071.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.