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Finding the Fourth Proportional to 543,193.20, 814,935.60 and 484,435.80

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Solution

The fourth proportional to 543,193.20, 814,935.60 and 484,435.80 is: 726,783.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,193.20 : 814,935.60 = 484,435.80 : x
  2. Step 2: Convert to fraction form
    543,193.20/814,935.60 = 484,435.80/x
  3. Step 3: Cross multiply
    543,193.20x = 814,935.60 × 484,435.80
  4. Step 4: Simplify right side
    543,193.20x = 394,783,979,334.48
  5. Step 5: Solve for x
    x = 394,783,979,334.48/543,193.20
  6. Step 6: Final answer
    x = 726,783.73

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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.