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Finding the Fourth Proportional to 479,405.67, 718,921.59 and 179,722.89

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Solution

The fourth proportional to 479,405.67, 718,921.59 and 179,722.89 is: 269,514.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,405.67 : 718,921.59 = 179,722.89 : x
  2. Step 2: Convert to fraction form
    479,405.67/718,921.59 = 179,722.89/x
  3. Step 3: Cross multiply
    479,405.67x = 718,921.59 × 179,722.89
  4. Step 4: Simplify right side
    479,405.67x = 129,206,665,838.20
  5. Step 5: Solve for x
    x = 129,206,665,838.20/479,405.67
  6. Step 6: Final answer
    x = 269,514.26

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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.