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Finding the Fourth Proportional to 479,562.59, 661,793.18 and 261,770.42

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Solution

The fourth proportional to 479,562.59, 661,793.18 and 261,770.42 is: 361,241.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,562.59 : 661,793.18 = 261,770.42 : x
  2. Step 2: Convert to fraction form
    479,562.59/661,793.18 = 261,770.42/x
  3. Step 3: Cross multiply
    479,562.59x = 661,793.18 × 261,770.42
  4. Step 4: Simplify right side
    479,562.59x = 173,237,874,063.92
  5. Step 5: Solve for x
    x = 173,237,874,063.92/479,562.59
  6. Step 6: Final answer
    x = 361,241.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.