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Finding the Fourth Proportional to 488,516.80, 733,552.80 and 331,441.60

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Solution

The fourth proportional to 488,516.80, 733,552.80 and 331,441.60 is: 497,689.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,516.80 : 733,552.80 = 331,441.60 : x
  2. Step 2: Convert to fraction form
    488,516.80/733,552.80 = 331,441.60/x
  3. Step 3: Cross multiply
    488,516.80x = 733,552.80 × 331,441.60
  4. Step 4: Simplify right side
    488,516.80x = 243,129,913,716.48
  5. Step 5: Solve for x
    x = 243,129,913,716.48/488,516.80
  6. Step 6: Final answer
    x = 497,689.97

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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.