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Finding the Fourth Proportional to 392,987.76, 589,552.92 and 224,697.84

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Solution

The fourth proportional to 392,987.76, 589,552.92 and 224,697.84 is: 337,087.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,987.76 : 589,552.92 = 224,697.84 : x
  2. Step 2: Convert to fraction form
    392,987.76/589,552.92 = 224,697.84/x
  3. Step 3: Cross multiply
    392,987.76x = 589,552.92 × 224,697.84
  4. Step 4: Simplify right side
    392,987.76x = 132,471,267,689.69
  5. Step 5: Solve for x
    x = 132,471,267,689.69/392,987.76
  6. Step 6: Final answer
    x = 337,087.52

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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.