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Finding the Fourth Proportional to 392,330.76, 587,753.64 and 231,926.46

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Solution

The fourth proportional to 392,330.76, 587,753.64 and 231,926.46 is: 347,450.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,330.76 : 587,753.64 = 231,926.46 : x
  2. Step 2: Convert to fraction form
    392,330.76/587,753.64 = 231,926.46/x
  3. Step 3: Cross multiply
    392,330.76x = 587,753.64 × 231,926.46
  4. Step 4: Simplify right side
    392,330.76x = 136,315,621,077.31
  5. Step 5: Solve for x
    x = 136,315,621,077.31/392,330.76
  6. Step 6: Final answer
    x = 347,450.76

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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.