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Finding the Fourth Proportional to 325,854.20, 488,781.30 and 302,234.60

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Solution

The fourth proportional to 325,854.20, 488,781.30 and 302,234.60 is: 453,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,854.20 : 488,781.30 = 302,234.60 : x
  2. Step 2: Convert to fraction form
    325,854.20/488,781.30 = 302,234.60/x
  3. Step 3: Cross multiply
    325,854.20x = 488,781.30 × 302,234.60
  4. Step 4: Simplify right side
    325,854.20x = 147,726,620,692.98
  5. Step 5: Solve for x
    x = 147,726,620,692.98/325,854.20
  6. Step 6: Final answer
    x = 453,351.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.