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Finding the Fourth Proportional to 534,114.30, 801,171.45 and 515,451.90

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Solution

The fourth proportional to 534,114.30, 801,171.45 and 515,451.90 is: 773,177.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,114.30 : 801,171.45 = 515,451.90 : x
  2. Step 2: Convert to fraction form
    534,114.30/801,171.45 = 515,451.90/x
  3. Step 3: Cross multiply
    534,114.30x = 801,171.45 × 515,451.90
  4. Step 4: Simplify right side
    534,114.30x = 412,965,346,128.26
  5. Step 5: Solve for x
    x = 412,965,346,128.26/534,114.30
  6. Step 6: Final answer
    x = 773,177.85

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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.