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Finding the Fourth Proportional to 441,932.70, 663,129.45 and 192,639.90

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Solution

The fourth proportional to 441,932.70, 663,129.45 and 192,639.90 is: 289,060.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,932.70 : 663,129.45 = 192,639.90 : x
  2. Step 2: Convert to fraction form
    441,932.70/663,129.45 = 192,639.90/x
  3. Step 3: Cross multiply
    441,932.70x = 663,129.45 × 192,639.90
  4. Step 4: Simplify right side
    441,932.70x = 127,745,190,935.06
  5. Step 5: Solve for x
    x = 127,745,190,935.06/441,932.70
  6. Step 6: Final answer
    x = 289,060.28

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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.