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Finding the Fourth Proportional to 543,195.20, 814,938.60 and 484,437.80

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Solution

The fourth proportional to 543,195.20, 814,938.60 and 484,437.80 is: 726,786.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,195.20 : 814,938.60 = 484,437.80 : x
  2. Step 2: Convert to fraction form
    543,195.20/814,938.60 = 484,437.80/x
  3. Step 3: Cross multiply
    543,195.20x = 814,938.60 × 484,437.80
  4. Step 4: Simplify right side
    543,195.20x = 394,787,062,519.08
  5. Step 5: Solve for x
    x = 394,787,062,519.08/543,195.20
  6. Step 6: Final answer
    x = 726,786.73

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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.