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Finding the Third Proportional to 339,531.75 and 661,772.53

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Solution

The third proportional to 339,531.75 and 661,772.53 is: 1,289,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,531.75 : 661,772.53 = 661,772.53 : x
  2. Step 2: Convert to fraction form
    339,531.75/661,772.53 = 661,772.53/x
  3. Step 3: Cross multiply
    339,531.75x = 661,772.53 × 661,772.53
  4. Step 4: Simplify right side
    339,531.75x = 437,942,883,117.03
  5. Step 5: Solve for x
    x = 437,942,883,117.03/339,531.75
  6. Step 6: Final answer
    x = 1,289,843.68

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These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.