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Finding the Fourth Proportional to 484,423.30, 726,306.90 and 247,571.20

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Solution

The fourth proportional to 484,423.30, 726,306.90 and 247,571.20 is: 371,189.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,423.30 : 726,306.90 = 247,571.20 : x
  2. Step 2: Convert to fraction form
    484,423.30/726,306.90 = 247,571.20/x
  3. Step 3: Cross multiply
    484,423.30x = 726,306.90 × 247,571.20
  4. Step 4: Simplify right side
    484,423.30x = 179,812,670,801.28
  5. Step 5: Solve for x
    x = 179,812,670,801.28/484,423.30
  6. Step 6: Final answer
    x = 371,189.15

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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.