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Finding the Fourth Proportional to 441,937.20, 663,136.20 and 192,644.40

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Solution

The fourth proportional to 441,937.20, 663,136.20 and 192,644.40 is: 289,067.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,937.20 : 663,136.20 = 192,644.40 : x
  2. Step 2: Convert to fraction form
    441,937.20/663,136.20 = 192,644.40/x
  3. Step 3: Cross multiply
    441,937.20x = 663,136.20 × 192,644.40
  4. Step 4: Simplify right side
    441,937.20x = 127,749,475,367.28
  5. Step 5: Solve for x
    x = 127,749,475,367.28/441,937.20
  6. Step 6: Final answer
    x = 289,067.03

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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.