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Finding the Fourth Proportional to 398,483.62, 597,724.35 and 132,264.16

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Solution

The fourth proportional to 398,483.62, 597,724.35 and 132,264.16 is: 198,395.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,483.62 : 597,724.35 = 132,264.16 : x
  2. Step 2: Convert to fraction form
    398,483.62/597,724.35 = 132,264.16/x
  3. Step 3: Cross multiply
    398,483.62x = 597,724.35 × 132,264.16
  4. Step 4: Simplify right side
    398,483.62x = 79,057,509,064.30
  5. Step 5: Solve for x
    x = 79,057,509,064.30/398,483.62
  6. Step 6: Final answer
    x = 198,395.88

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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.