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Finding the Fourth Proportional to 658,149.01, 987,223.51 and 159,513.01

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Solution

The fourth proportional to 658,149.01, 987,223.51 and 159,513.01 is: 239,269.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,149.01 : 987,223.51 = 159,513.01 : x
  2. Step 2: Convert to fraction form
    658,149.01/987,223.51 = 159,513.01/x
  3. Step 3: Cross multiply
    658,149.01x = 987,223.51 × 159,513.01
  4. Step 4: Simplify right side
    658,149.01x = 157,474,988,287.97
  5. Step 5: Solve for x
    x = 157,474,988,287.97/658,149.01
  6. Step 6: Final answer
    x = 239,269.51

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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.