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Finding the Fourth Proportional to 479,524.92, 661,765.98 and 275,642.04

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Solution

The fourth proportional to 479,524.92, 661,765.98 and 275,642.04 is: 380,398.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,524.92 : 661,765.98 = 275,642.04 : x
  2. Step 2: Convert to fraction form
    479,524.92/661,765.98 = 275,642.04/x
  3. Step 3: Cross multiply
    479,524.92x = 661,765.98 × 275,642.04
  4. Step 4: Simplify right side
    479,524.92x = 182,410,524,729.80
  5. Step 5: Solve for x
    x = 182,410,524,729.80/479,524.92
  6. Step 6: Final answer
    x = 380,398.43

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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.