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Finding the Third Proportional to 206,448.75 and 290,724.19

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Solution

The third proportional to 206,448.75 and 290,724.19 is: 409,402.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,448.75 : 290,724.19 = 290,724.19 : x
  2. Step 2: Convert to fraction form
    206,448.75/290,724.19 = 290,724.19/x
  3. Step 3: Cross multiply
    206,448.75x = 290,724.19 × 290,724.19
  4. Step 4: Simplify right side
    206,448.75x = 84,520,553,197.54
  5. Step 5: Solve for x
    x = 84,520,553,197.54/206,448.75
  6. Step 6: Final answer
    x = 409,402.11

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These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.