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Finding the Fourth Proportional to 531,570.10, 797,355.15 and 266,149.30

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Solution

The fourth proportional to 531,570.10, 797,355.15 and 266,149.30 is: 399,223.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,570.10 : 797,355.15 = 266,149.30 : x
  2. Step 2: Convert to fraction form
    531,570.10/797,355.15 = 266,149.30/x
  3. Step 3: Cross multiply
    531,570.10x = 797,355.15 × 266,149.30
  4. Step 4: Simplify right side
    531,570.10x = 212,215,515,023.90
  5. Step 5: Solve for x
    x = 212,215,515,023.90/531,570.10
  6. Step 6: Final answer
    x = 399,223.95

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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.