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Finding the Fourth Proportional to 484,354.16, 726,744.36 and 247,891.76

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Solution

The fourth proportional to 484,354.16, 726,744.36 and 247,891.76 is: 371,946.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,354.16 : 726,744.36 = 247,891.76 : x
  2. Step 2: Convert to fraction form
    484,354.16/726,744.36 = 247,891.76/x
  3. Step 3: Cross multiply
    484,354.16x = 726,744.36 × 247,891.76
  4. Step 4: Simplify right side
    484,354.16x = 180,153,938,470.47
  5. Step 5: Solve for x
    x = 180,153,938,470.47/484,354.16
  6. Step 6: Final answer
    x = 371,946.71

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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.