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Finding the Fourth Proportional to 425,719.19, 587,462.42 and 234,728.48

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Solution

The fourth proportional to 425,719.19, 587,462.42 and 234,728.48 is: 323,908.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,719.19 : 587,462.42 = 234,728.48 : x
  2. Step 2: Convert to fraction form
    425,719.19/587,462.42 = 234,728.48/x
  3. Step 3: Cross multiply
    425,719.19x = 587,462.42 × 234,728.48
  4. Step 4: Simplify right side
    425,719.19x = 137,894,162,959.20
  5. Step 5: Solve for x
    x = 137,894,162,959.20/425,719.19
  6. Step 6: Final answer
    x = 323,908.73

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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.