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Finding the Fourth Proportional to 425,454.44, 587,116.31 and 231,867.13

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Solution

The fourth proportional to 425,454.44, 587,116.31 and 231,867.13 is: 319,970.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,454.44 : 587,116.31 = 231,867.13 : x
  2. Step 2: Convert to fraction form
    425,454.44/587,116.31 = 231,867.13/x
  3. Step 3: Cross multiply
    425,454.44x = 587,116.31 × 231,867.13
  4. Step 4: Simplify right side
    425,454.44x = 136,132,973,775.89
  5. Step 5: Solve for x
    x = 136,132,973,775.89/425,454.44
  6. Step 6: Final answer
    x = 319,970.74

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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.