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Finding the Fourth Proportional to 398,286.16, 597,545.88 and 117,810.88

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Solution

The fourth proportional to 398,286.16, 597,545.88 and 117,810.88 is: 176,750.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,286.16 : 597,545.88 = 117,810.88 : x
  2. Step 2: Convert to fraction form
    398,286.16/597,545.88 = 117,810.88/x
  3. Step 3: Cross multiply
    398,286.16x = 597,545.88 × 117,810.88
  4. Step 4: Simplify right side
    398,286.16x = 70,397,405,963.17
  5. Step 5: Solve for x
    x = 70,397,405,963.17/398,286.16
  6. Step 6: Final answer
    x = 176,750.82

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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.