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Finding the Third Proportional to 657,640.50 and 891,198.75

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Solution

The third proportional to 657,640.50 and 891,198.75 is: 1,207,704.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,640.50 : 891,198.75 = 891,198.75 : x
  2. Step 2: Convert to fraction form
    657,640.50/891,198.75 = 891,198.75/x
  3. Step 3: Cross multiply
    657,640.50x = 891,198.75 × 891,198.75
  4. Step 4: Simplify right side
    657,640.50x = 794,235,212,001.56
  5. Step 5: Solve for x
    x = 794,235,212,001.56/657,640.50
  6. Step 6: Final answer
    x = 1,207,704.23

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.