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Finding the Third Proportional to 395,472 and 869,568

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Solution

The third proportional to 395,472 and 869,568 is: 1,912,015.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,472 : 869,568 = 869,568 : x
  2. Step 2: Convert to fraction form
    395,472/869,568 = 869,568/x
  3. Step 3: Cross multiply
    395,472x = 869,568 × 869,568
  4. Step 4: Simplify right side
    395,472x = 756,148,506,624
  5. Step 5: Solve for x
    x = 756,148,506,624/395,472
  6. Step 6: Final answer
    x = 1,912,015.28

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.