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Finding the Fourth Proportional to 425,957.89, 587,823.91 and 234,971.28

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Solution

The fourth proportional to 425,957.89, 587,823.91 and 234,971.28 is: 324,261.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,957.89 : 587,823.91 = 234,971.28 : x
  2. Step 2: Convert to fraction form
    425,957.89/587,823.91 = 234,971.28/x
  3. Step 3: Cross multiply
    425,957.89x = 587,823.91 × 234,971.28
  4. Step 4: Simplify right side
    425,957.89x = 138,121,736,620.73
  5. Step 5: Solve for x
    x = 138,121,736,620.73/425,957.89
  6. Step 6: Final answer
    x = 324,261.48

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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.