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Finding the Fourth Proportional to 425,412.93, 587,073.78 and 234,433.16

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Solution

The fourth proportional to 425,412.93, 587,073.78 and 234,433.16 is: 323,519.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,412.93 : 587,073.78 = 234,433.16 : x
  2. Step 2: Convert to fraction form
    425,412.93/587,073.78 = 234,433.16/x
  3. Step 3: Cross multiply
    425,412.93x = 587,073.78 × 234,433.16
  4. Step 4: Simplify right side
    425,412.93x = 137,629,561,398.55
  5. Step 5: Solve for x
    x = 137,629,561,398.55/425,412.93
  6. Step 6: Final answer
    x = 323,519.93

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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.