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Finding the Fourth Proportional to 444,721.53, 667,348.08 and 408,542.76

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Solution

The fourth proportional to 444,721.53, 667,348.08 and 408,542.76 is: 613,058.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,721.53 : 667,348.08 = 408,542.76 : x
  2. Step 2: Convert to fraction form
    444,721.53/667,348.08 = 408,542.76/x
  3. Step 3: Cross multiply
    444,721.53x = 667,348.08 × 408,542.76
  4. Step 4: Simplify right side
    444,721.53x = 272,640,226,483.90
  5. Step 5: Solve for x
    x = 272,640,226,483.90/444,721.53
  6. Step 6: Final answer
    x = 613,058.30

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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.