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Finding the Fourth Proportional to 488,306.88, 732,732.48 and 263,662.56

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Solution

The fourth proportional to 488,306.88, 732,732.48 and 263,662.56 is: 395,640.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,306.88 : 732,732.48 = 263,662.56 : x
  2. Step 2: Convert to fraction form
    488,306.88/732,732.48 = 263,662.56/x
  3. Step 3: Cross multiply
    488,306.88x = 732,732.48 × 263,662.56
  4. Step 4: Simplify right side
    488,306.88x = 193,194,121,471.95
  5. Step 5: Solve for x
    x = 193,194,121,471.95/488,306.88
  6. Step 6: Final answer
    x = 395,640.79

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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.