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Finding the Fourth Proportional to 425,392.80, 587,067.84 and 234,405.96

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Solution

The fourth proportional to 425,392.80, 587,067.84 and 234,405.96 is: 323,494.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,392.80 : 587,067.84 = 234,405.96 : x
  2. Step 2: Convert to fraction form
    425,392.80/587,067.84 = 234,405.96/x
  3. Step 3: Cross multiply
    425,392.80x = 587,067.84 × 234,405.96
  4. Step 4: Simplify right side
    425,392.80x = 137,612,200,620.33
  5. Step 5: Solve for x
    x = 137,612,200,620.33/425,392.80
  6. Step 6: Final answer
    x = 323,494.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.