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Finding the Fourth Proportional to 658,149.88, 987,224.82 and 159,513.88

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Solution

The fourth proportional to 658,149.88, 987,224.82 and 159,513.88 is: 239,270.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,149.88 : 987,224.82 = 159,513.88 : x
  2. Step 2: Convert to fraction form
    658,149.88/987,224.82 = 159,513.88/x
  3. Step 3: Cross multiply
    658,149.88x = 987,224.82 × 159,513.88
  4. Step 4: Simplify right side
    658,149.88x = 157,476,061,470.50
  5. Step 5: Solve for x
    x = 157,476,061,470.50/658,149.88
  6. Step 6: Final answer
    x = 239,270.82

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Double scale
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Similar ratio
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1.5x scale

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.