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Finding the Fourth Proportional to 404,379.20, 606,571.20 and 179,686.82

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Solution

The fourth proportional to 404,379.20, 606,571.20 and 179,686.82 is: 269,531.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,379.20 : 606,571.20 = 179,686.82 : x
  2. Step 2: Convert to fraction form
    404,379.20/606,571.20 = 179,686.82/x
  3. Step 3: Cross multiply
    404,379.20x = 606,571.20 × 179,686.82
  4. Step 4: Simplify right side
    404,379.20x = 108,992,850,031.58
  5. Step 5: Solve for x
    x = 108,992,850,031.58/404,379.20
  6. Step 6: Final answer
    x = 269,531.30

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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.