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Finding the Fourth Proportional to 591,679.28, 887,331 and 192,227.78

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Solution

The fourth proportional to 591,679.28, 887,331 and 192,227.78 is: 288,280.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,679.28 : 887,331 = 192,227.78 : x
  2. Step 2: Convert to fraction form
    591,679.28/887,331 = 192,227.78/x
  3. Step 3: Cross multiply
    591,679.28x = 887,331 × 192,227.78
  4. Step 4: Simplify right side
    591,679.28x = 170,569,668,255.18
  5. Step 5: Solve for x
    x = 170,569,668,255.18/591,679.28
  6. Step 6: Final answer
    x = 288,280.62

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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.