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Finding the Fourth Proportional to 391,432.80, 587,146.06 and 232,609.44

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Solution

The fourth proportional to 391,432.80, 587,146.06 and 232,609.44 is: 348,912.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,432.80 : 587,146.06 = 232,609.44 : x
  2. Step 2: Convert to fraction form
    391,432.80/587,146.06 = 232,609.44/x
  3. Step 3: Cross multiply
    391,432.80x = 587,146.06 × 232,609.44
  4. Step 4: Simplify right side
    391,432.80x = 136,575,716,214.81
  5. Step 5: Solve for x
    x = 136,575,716,214.81/391,432.80
  6. Step 6: Final answer
    x = 348,912.29

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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.