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Finding the Third Proportional to 276,912.75 and 414,906.75

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Solution

The third proportional to 276,912.75 and 414,906.75 is: 621,667.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,912.75 : 414,906.75 = 414,906.75 : x
  2. Step 2: Convert to fraction form
    276,912.75/414,906.75 = 414,906.75/x
  3. Step 3: Cross multiply
    276,912.75x = 414,906.75 × 414,906.75
  4. Step 4: Simplify right side
    276,912.75x = 172,147,611,195.56
  5. Step 5: Solve for x
    x = 172,147,611,195.56/276,912.75
  6. Step 6: Final answer
    x = 621,667.33

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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.