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Finding the Third Proportional to 1,189,920.38 and 1,812,773.46

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Solution

The third proportional to 1,189,920.38 and 1,812,773.46 is: 2,761,653.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,920.38 : 1,812,773.46 = 1,812,773.46 : x
  2. Step 2: Convert to fraction form
    1,189,920.38/1,812,773.46 = 1,812,773.46/x
  3. Step 3: Cross multiply
    1,189,920.38x = 1,812,773.46 × 1,812,773.46
  4. Step 4: Simplify right side
    1,189,920.38x = 3,286,147,620,679.32
  5. Step 5: Solve for x
    x = 3,286,147,620,679.32/1,189,920.38
  6. Step 6: Final answer
    x = 2,761,653.38

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.