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Finding the Third Proportional to 667,318 and 1,439,608

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Solution

The third proportional to 667,318 and 1,439,608 is: 3,105,672.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,318 : 1,439,608 = 1,439,608 : x
  2. Step 2: Convert to fraction form
    667,318/1,439,608 = 1,439,608/x
  3. Step 3: Cross multiply
    667,318x = 1,439,608 × 1,439,608
  4. Step 4: Simplify right side
    667,318x = 2,072,471,193,664
  5. Step 5: Solve for x
    x = 2,072,471,193,664/667,318
  6. Step 6: Final answer
    x = 3,105,672.55

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.