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Finding the Fourth Proportional to 985,825.52, 1,471,606.96 and 866,251.30

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Solution

The fourth proportional to 985,825.52, 1,471,606.96 and 866,251.30 is: 1,293,110.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,825.52 : 1,471,606.96 = 866,251.30 : x
  2. Step 2: Convert to fraction form
    985,825.52/1,471,606.96 = 866,251.30/x
  3. Step 3: Cross multiply
    985,825.52x = 1,471,606.96 × 866,251.30
  4. Step 4: Simplify right side
    985,825.52x = 1,274,781,442,189.05
  5. Step 5: Solve for x
    x = 1,274,781,442,189.05/985,825.52
  6. Step 6: Final answer
    x = 1,293,110.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.