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Finding the Fourth Proportional to 479,213.31, 718,550.24 and 159,193.86

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Solution

The fourth proportional to 479,213.31, 718,550.24 and 159,193.86 is: 238,701.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,213.31 : 718,550.24 = 159,193.86 : x
  2. Step 2: Convert to fraction form
    479,213.31/718,550.24 = 159,193.86/x
  3. Step 3: Cross multiply
    479,213.31x = 718,550.24 × 159,193.86
  4. Step 4: Simplify right side
    479,213.31x = 114,388,785,513.56
  5. Step 5: Solve for x
    x = 114,388,785,513.56/479,213.31
  6. Step 6: Final answer
    x = 238,701.19

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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.