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Finding the Fourth Proportional to 534,108.80, 801,163.20 and 515,446.40

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Solution

The fourth proportional to 534,108.80, 801,163.20 and 515,446.40 is: 773,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,108.80 : 801,163.20 = 515,446.40 : x
  2. Step 2: Convert to fraction form
    534,108.80/801,163.20 = 515,446.40/x
  3. Step 3: Cross multiply
    534,108.80x = 801,163.20 × 515,446.40
  4. Step 4: Simplify right side
    534,108.80x = 412,956,687,252.48
  5. Step 5: Solve for x
    x = 412,956,687,252.48/534,108.80
  6. Step 6: Final answer
    x = 773,169.60

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Half scale
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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.