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Finding the Fourth Proportional to 479,407.65, 718,924.56 and 179,724.69

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Solution

The fourth proportional to 479,407.65, 718,924.56 and 179,724.69 is: 269,516.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,407.65 : 718,924.56 = 179,724.69 : x
  2. Step 2: Convert to fraction form
    479,407.65/718,924.56 = 179,724.69/x
  3. Step 3: Cross multiply
    479,407.65x = 718,924.56 × 179,724.69
  4. Step 4: Simplify right side
    479,407.65x = 129,208,493,679.39
  5. Step 5: Solve for x
    x = 129,208,493,679.39/479,407.65
  6. Step 6: Final answer
    x = 269,516.96

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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.