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Finding the Fourth Proportional to 534,456.20, 800,129.10 and 472,248.20

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Solution

The fourth proportional to 534,456.20, 800,129.10 and 472,248.20 is: 706,998.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,456.20 : 800,129.10 = 472,248.20 : x
  2. Step 2: Convert to fraction form
    534,456.20/800,129.10 = 472,248.20/x
  3. Step 3: Cross multiply
    534,456.20x = 800,129.10 × 472,248.20
  4. Step 4: Simplify right side
    534,456.20x = 377,859,527,242.62
  5. Step 5: Solve for x
    x = 377,859,527,242.62/534,456.20
  6. Step 6: Final answer
    x = 706,998.12

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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.