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Finding the Fourth Proportional to 398,561.64, 597,712.44 and 132,250.65

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Solution

The fourth proportional to 398,561.64, 597,712.44 and 132,250.65 is: 198,332.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,561.64 : 597,712.44 = 132,250.65 : x
  2. Step 2: Convert to fraction form
    398,561.64/597,712.44 = 132,250.65/x
  3. Step 3: Cross multiply
    398,561.64x = 597,712.44 × 132,250.65
  4. Step 4: Simplify right side
    398,561.64x = 79,047,858,703.09
  5. Step 5: Solve for x
    x = 79,047,858,703.09/398,561.64
  6. Step 6: Final answer
    x = 198,332.83

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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.