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Finding the Fourth Proportional to 398,544.87, 597,687.77 and 132,233.88

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Solution

The fourth proportional to 398,544.87, 597,687.77 and 132,233.88 is: 198,307.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,544.87 : 597,687.77 = 132,233.88 : x
  2. Step 2: Convert to fraction form
    398,544.87/597,687.77 = 132,233.88/x
  3. Step 3: Cross multiply
    398,544.87x = 597,687.77 × 132,233.88
  4. Step 4: Simplify right side
    398,544.87x = 79,034,570,012.66
  5. Step 5: Solve for x
    x = 79,034,570,012.66/398,544.87
  6. Step 6: Final answer
    x = 198,307.84

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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.