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Finding the Fourth Proportional to 488,620.20, 732,930.30 and 329,187.90

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Solution

The fourth proportional to 488,620.20, 732,930.30 and 329,187.90 is: 493,781.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,620.20 : 732,930.30 = 329,187.90 : x
  2. Step 2: Convert to fraction form
    488,620.20/732,930.30 = 329,187.90/x
  3. Step 3: Cross multiply
    488,620.20x = 732,930.30 × 329,187.90
  4. Step 4: Simplify right side
    488,620.20x = 241,271,786,303.37
  5. Step 5: Solve for x
    x = 241,271,786,303.37/488,620.20
  6. Step 6: Final answer
    x = 493,781.85

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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.