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Finding the Fourth Proportional to 462,440.52, 638,249.13 and 268,908.11

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Solution

The fourth proportional to 462,440.52, 638,249.13 and 268,908.11 is: 371,140.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,440.52 : 638,249.13 = 268,908.11 : x
  2. Step 2: Convert to fraction form
    462,440.52/638,249.13 = 268,908.11/x
  3. Step 3: Cross multiply
    462,440.52x = 638,249.13 × 268,908.11
  4. Step 4: Simplify right side
    462,440.52x = 171,630,367,257.44
  5. Step 5: Solve for x
    x = 171,630,367,257.44/462,440.52
  6. Step 6: Final answer
    x = 371,140.42

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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.