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Finding the Fourth Proportional to 876,469.68, 1,200,757.79 and 843,694.39

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Solution

The fourth proportional to 876,469.68, 1,200,757.79 and 843,694.39 is: 1,155,855.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,469.68 : 1,200,757.79 = 843,694.39 : x
  2. Step 2: Convert to fraction form
    876,469.68/1,200,757.79 = 843,694.39/x
  3. Step 3: Cross multiply
    876,469.68x = 1,200,757.79 × 843,694.39
  4. Step 4: Simplify right side
    876,469.68x = 1,013,072,614,781.98
  5. Step 5: Solve for x
    x = 1,013,072,614,781.98/876,469.68
  6. Step 6: Final answer
    x = 1,155,855.86

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.