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Finding the Third Proportional to 712,408.50 and 1,107,067.50

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Solution

The third proportional to 712,408.50 and 1,107,067.50 is: 1,720,359.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,408.50 : 1,107,067.50 = 1,107,067.50 : x
  2. Step 2: Convert to fraction form
    712,408.50/1,107,067.50 = 1,107,067.50/x
  3. Step 3: Cross multiply
    712,408.50x = 1,107,067.50 × 1,107,067.50
  4. Step 4: Simplify right side
    712,408.50x = 1,225,598,449,556.25
  5. Step 5: Solve for x
    x = 1,225,598,449,556.25/712,408.50
  6. Step 6: Final answer
    x = 1,720,359.11

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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.