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Finding the Fourth Proportional to 391,675.44, 587,775.87 and 251,532.48

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Solution

The fourth proportional to 391,675.44, 587,775.87 and 251,532.48 is: 377,467.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,675.44 : 587,775.87 = 251,532.48 : x
  2. Step 2: Convert to fraction form
    391,675.44/587,775.87 = 251,532.48/x
  3. Step 3: Cross multiply
    391,675.44x = 587,775.87 × 251,532.48
  4. Step 4: Simplify right side
    391,675.44x = 147,844,722,265.26
  5. Step 5: Solve for x
    x = 147,844,722,265.26/391,675.44
  6. Step 6: Final answer
    x = 377,467.43

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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.