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Finding the Third Proportional to 273,788 and 409,568

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Solution

The third proportional to 273,788 and 409,568 is: 612,685.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,788 : 409,568 = 409,568 : x
  2. Step 2: Convert to fraction form
    273,788/409,568 = 409,568/x
  3. Step 3: Cross multiply
    273,788x = 409,568 × 409,568
  4. Step 4: Simplify right side
    273,788x = 167,745,946,624
  5. Step 5: Solve for x
    x = 167,745,946,624/273,788
  6. Step 6: Final answer
    x = 612,685.53

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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.