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Finding the Fourth Proportional to 1,161,845.53, 1,743,063.96 and 682,478.71

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Solution

The fourth proportional to 1,161,845.53, 1,743,063.96 and 682,478.71 is: 1,023,891.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,845.53 : 1,743,063.96 = 682,478.71 : x
  2. Step 2: Convert to fraction form
    1,161,845.53/1,743,063.96 = 682,478.71/x
  3. Step 3: Cross multiply
    1,161,845.53x = 1,743,063.96 × 682,478.71
  4. Step 4: Simplify right side
    1,161,845.53x = 1,189,604,042,868.29
  5. Step 5: Solve for x
    x = 1,189,604,042,868.29/1,161,845.53
  6. Step 6: Final answer
    x = 1,023,891.74

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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.