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Finding the Fourth Proportional to 658,200.75, 987,301.13 and 159,564.75

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Solution

The fourth proportional to 658,200.75, 987,301.13 and 159,564.75 is: 239,347.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,200.75 : 987,301.13 = 159,564.75 : x
  2. Step 2: Convert to fraction form
    658,200.75/987,301.13 = 159,564.75/x
  3. Step 3: Cross multiply
    658,200.75x = 987,301.13 × 159,564.75
  4. Step 4: Simplify right side
    658,200.75x = 157,538,457,185.34
  5. Step 5: Solve for x
    x = 157,538,457,185.34/658,200.75
  6. Step 6: Final answer
    x = 239,347.13

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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.