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Finding the Fourth Proportional to 580,286.70, 870,451.92 and 159,595.38

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Solution

The fourth proportional to 580,286.70, 870,451.92 and 159,595.38 is: 239,399.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,286.70 : 870,451.92 = 159,595.38 : x
  2. Step 2: Convert to fraction form
    580,286.70/870,451.92 = 159,595.38/x
  3. Step 3: Cross multiply
    580,286.70x = 870,451.92 × 159,595.38
  4. Step 4: Simplify right side
    580,286.70x = 138,920,104,944.13
  5. Step 5: Solve for x
    x = 138,920,104,944.13/580,286.70
  6. Step 6: Final answer
    x = 239,399.08

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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.