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Finding the Fourth Proportional to 576,691.92, 864,395.64 and 239,544.72

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Solution

The fourth proportional to 576,691.92, 864,395.64 and 239,544.72 is: 359,050.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,691.92 : 864,395.64 = 239,544.72 : x
  2. Step 2: Convert to fraction form
    576,691.92/864,395.64 = 239,544.72/x
  3. Step 3: Cross multiply
    576,691.92x = 864,395.64 × 239,544.72
  4. Step 4: Simplify right side
    576,691.92x = 207,061,411,553.02
  5. Step 5: Solve for x
    x = 207,061,411,553.02/576,691.92
  6. Step 6: Final answer
    x = 359,050.31

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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.