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Finding the Fourth Proportional to 492,045.20, 737,849.10 and 192,426.20

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Solution

The fourth proportional to 492,045.20, 737,849.10 and 192,426.20 is: 288,553.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,045.20 : 737,849.10 = 192,426.20 : x
  2. Step 2: Convert to fraction form
    492,045.20/737,849.10 = 192,426.20/x
  3. Step 3: Cross multiply
    492,045.20x = 737,849.10 × 192,426.20
  4. Step 4: Simplify right side
    492,045.20x = 141,981,498,486.42
  5. Step 5: Solve for x
    x = 141,981,498,486.42/492,045.20
  6. Step 6: Final answer
    x = 288,553.77

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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.