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Finding the Fourth Proportional to 398,425.50, 597,755.30 and 117,950.04

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Solution

The fourth proportional to 398,425.50, 597,755.30 and 117,950.04 is: 176,959.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,425.50 : 597,755.30 = 117,950.04 : x
  2. Step 2: Convert to fraction form
    398,425.50/597,755.30 = 117,950.04/x
  3. Step 3: Cross multiply
    398,425.50x = 597,755.30 × 117,950.04
  4. Step 4: Simplify right side
    398,425.50x = 70,505,260,955.46
  5. Step 5: Solve for x
    x = 70,505,260,955.46/398,425.50
  6. Step 6: Final answer
    x = 176,959.71

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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.