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Finding the Fourth Proportional to 361,402.88, 498,819.20 and 240,548.96

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Solution

The fourth proportional to 361,402.88, 498,819.20 and 240,548.96 is: 332,012.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,402.88 : 498,819.20 = 240,548.96 : x
  2. Step 2: Convert to fraction form
    361,402.88/498,819.20 = 240,548.96/x
  3. Step 3: Cross multiply
    361,402.88x = 498,819.20 × 240,548.96
  4. Step 4: Simplify right side
    361,402.88x = 119,990,439,788.03
  5. Step 5: Solve for x
    x = 119,990,439,788.03/361,402.88
  6. Step 6: Final answer
    x = 332,012.96

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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.