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Finding the Fourth Proportional to 555,129.90, 832,500.45 and 288,801.90

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Solution

The fourth proportional to 555,129.90, 832,500.45 and 288,801.90 is: 433,101.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,129.90 : 832,500.45 = 288,801.90 : x
  2. Step 2: Convert to fraction form
    555,129.90/832,500.45 = 288,801.90/x
  3. Step 3: Cross multiply
    555,129.90x = 832,500.45 × 288,801.90
  4. Step 4: Simplify right side
    555,129.90x = 240,427,711,710.86
  5. Step 5: Solve for x
    x = 240,427,711,710.86/555,129.90
  6. Step 6: Final answer
    x = 433,101.71

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.