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Finding the Third Proportional to 306,067.50 and 656,358.75

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Solution

The third proportional to 306,067.50 and 656,358.75 is: 1,407,554.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,067.50 : 656,358.75 = 656,358.75 : x
  2. Step 2: Convert to fraction form
    306,067.50/656,358.75 = 656,358.75/x
  3. Step 3: Cross multiply
    306,067.50x = 656,358.75 × 656,358.75
  4. Step 4: Simplify right side
    306,067.50x = 430,806,808,701.56
  5. Step 5: Solve for x
    x = 430,806,808,701.56/306,067.50
  6. Step 6: Final answer
    x = 1,407,554.90

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These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.