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Finding the Fourth Proportional to 439,294.49, 658,189.50 and 239,754.89

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Solution

The fourth proportional to 439,294.49, 658,189.50 and 239,754.89 is: 359,221.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,294.49 : 658,189.50 = 239,754.89 : x
  2. Step 2: Convert to fraction form
    439,294.49/658,189.50 = 239,754.89/x
  3. Step 3: Cross multiply
    439,294.49x = 658,189.50 × 239,754.89
  4. Step 4: Simplify right side
    439,294.49x = 157,804,148,215.73
  5. Step 5: Solve for x
    x = 157,804,148,215.73/439,294.49
  6. Step 6: Final answer
    x = 359,221.78

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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.