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Finding the Third Proportional to 552,321.75 and 857,213.75

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Solution

The third proportional to 552,321.75 and 857,213.75 is: 1,330,411.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,321.75 : 857,213.75 = 857,213.75 : x
  2. Step 2: Convert to fraction form
    552,321.75/857,213.75 = 857,213.75/x
  3. Step 3: Cross multiply
    552,321.75x = 857,213.75 × 857,213.75
  4. Step 4: Simplify right side
    552,321.75x = 734,815,413,189.06
  5. Step 5: Solve for x
    x = 734,815,413,189.06/552,321.75
  6. Step 6: Final answer
    x = 1,330,411.87

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.