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Finding the Fourth Proportional to 398,794.96, 597,992.55 and 132,462.10

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Solution

The fourth proportional to 398,794.96, 597,992.55 and 132,462.10 is: 198,626.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,794.96 : 597,992.55 = 132,462.10 : x
  2. Step 2: Convert to fraction form
    398,794.96/597,992.55 = 132,462.10/x
  3. Step 3: Cross multiply
    398,794.96x = 597,992.55 × 132,462.10
  4. Step 4: Simplify right side
    398,794.96x = 79,211,348,957.36
  5. Step 5: Solve for x
    x = 79,211,348,957.36/398,794.96
  6. Step 6: Final answer
    x = 198,626.76

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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.