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Finding the Fourth Proportional to 393,241.20, 588,593.13 and 203,440.20

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Solution

The fourth proportional to 393,241.20, 588,593.13 and 203,440.20 is: 304,503.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,241.20 : 588,593.13 = 203,440.20 : x
  2. Step 2: Convert to fraction form
    393,241.20/588,593.13 = 203,440.20/x
  3. Step 3: Cross multiply
    393,241.20x = 588,593.13 × 203,440.20
  4. Step 4: Simplify right side
    393,241.20x = 119,743,504,085.83
  5. Step 5: Solve for x
    x = 119,743,504,085.83/393,241.20
  6. Step 6: Final answer
    x = 304,503.96

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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.