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Finding the Fourth Proportional to 404,380.20, 606,572.70 and 179,687.82

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Solution

The fourth proportional to 404,380.20, 606,572.70 and 179,687.82 is: 269,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,380.20 : 606,572.70 = 179,687.82 : x
  2. Step 2: Convert to fraction form
    404,380.20/606,572.70 = 179,687.82/x
  3. Step 3: Cross multiply
    404,380.20x = 606,572.70 × 179,687.82
  4. Step 4: Simplify right side
    404,380.20x = 108,993,726,134.51
  5. Step 5: Solve for x
    x = 108,993,726,134.51/404,380.20
  6. Step 6: Final answer
    x = 269,532.80

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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.