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Finding the Fourth Proportional to 441,691.30, 609,488.22 and 248,120.74

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Solution

The fourth proportional to 441,691.30, 609,488.22 and 248,120.74 is: 342,380.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,691.30 : 609,488.22 = 248,120.74 : x
  2. Step 2: Convert to fraction form
    441,691.30/609,488.22 = 248,120.74/x
  3. Step 3: Cross multiply
    441,691.30x = 609,488.22 × 248,120.74
  4. Step 4: Simplify right side
    441,691.30x = 151,226,668,167.68
  5. Step 5: Solve for x
    x = 151,226,668,167.68/441,691.30
  6. Step 6: Final answer
    x = 342,380.91

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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.