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Finding the Fourth Proportional to 574,691.76, 862,061.90 and 169,884.86

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Solution

The fourth proportional to 574,691.76, 862,061.90 and 169,884.86 is: 254,834.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,691.76 : 862,061.90 = 169,884.86 : x
  2. Step 2: Convert to fraction form
    574,691.76/862,061.90 = 169,884.86/x
  3. Step 3: Cross multiply
    574,691.76x = 862,061.90 × 169,884.86
  4. Step 4: Simplify right side
    574,691.76x = 146,451,260,033.10
  5. Step 5: Solve for x
    x = 146,451,260,033.10/574,691.76
  6. Step 6: Final answer
    x = 254,834.45

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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.