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Finding the Fourth Proportional to 431,857.12, 595,963.86 and 240,882.88

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Solution

The fourth proportional to 431,857.12, 595,963.86 and 240,882.88 is: 332,418.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,857.12 : 595,963.86 = 240,882.88 : x
  2. Step 2: Convert to fraction form
    431,857.12/595,963.86 = 240,882.88/x
  3. Step 3: Cross multiply
    431,857.12x = 595,963.86 × 240,882.88
  4. Step 4: Simplify right side
    431,857.12x = 143,557,490,972.72
  5. Step 5: Solve for x
    x = 143,557,490,972.72/431,857.12
  6. Step 6: Final answer
    x = 332,418.95

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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.