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Finding the Fourth Proportional to 574,976,459.40, 862,464,689.10 and 437,226,952.20

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Solution

The fourth proportional to 574,976,459.40, 862,464,689.10 and 437,226,952.20 is: 655,840,428.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,976,459.40 : 862,464,689.10 = 437,226,952.20 : x
  2. Step 2: Convert to fraction form
    574,976,459.40/862,464,689.10 = 437,226,952.20/x
  3. Step 3: Cross multiply
    574,976,459.40x = 862,464,689.10 × 437,226,952.20
  4. Step 4: Simplify right side
    574,976,459.40x = 377,092,807,395,313,536
  5. Step 5: Solve for x
    x = 377,092,807,395,313,536/574,976,459.40
  6. Step 6: Final answer
    x = 655,840,428.30

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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.