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Finding the Fourth Proportional to 488,447.80, 733,449.30 and 331,372.60

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Solution

The fourth proportional to 488,447.80, 733,449.30 and 331,372.60 is: 497,586.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,447.80 : 733,449.30 = 331,372.60 : x
  2. Step 2: Convert to fraction form
    488,447.80/733,449.30 = 331,372.60/x
  3. Step 3: Cross multiply
    488,447.80x = 733,449.30 × 331,372.60
  4. Step 4: Simplify right side
    488,447.80x = 243,045,001,509.18
  5. Step 5: Solve for x
    x = 243,045,001,509.18/488,447.80
  6. Step 6: Final answer
    x = 497,586.44

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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.