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Finding the Fourth Proportional to 408,532.65, 563,791.10 and 247,296.48

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Solution

The fourth proportional to 408,532.65, 563,791.10 and 247,296.48 is: 341,278.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,532.65 : 563,791.10 = 247,296.48 : x
  2. Step 2: Convert to fraction form
    408,532.65/563,791.10 = 247,296.48/x
  3. Step 3: Cross multiply
    408,532.65x = 563,791.10 × 247,296.48
  4. Step 4: Simplify right side
    408,532.65x = 139,423,553,248.85
  5. Step 5: Solve for x
    x = 139,423,553,248.85/408,532.65
  6. Step 6: Final answer
    x = 341,278.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.