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Finding the Third Proportional to 202,616 and 440,909

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Solution

The third proportional to 202,616 and 440,909 is: 959,454.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,616 : 440,909 = 440,909 : x
  2. Step 2: Convert to fraction form
    202,616/440,909 = 440,909/x
  3. Step 3: Cross multiply
    202,616x = 440,909 × 440,909
  4. Step 4: Simplify right side
    202,616x = 194,400,746,281
  5. Step 5: Solve for x
    x = 194,400,746,281/202,616
  6. Step 6: Final answer
    x = 959,454.07

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.