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Finding the Third Proportional to 783,666 and 1,721,452.50

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Solution

The third proportional to 783,666 and 1,721,452.50 is: 3,781,456.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,666 : 1,721,452.50 = 1,721,452.50 : x
  2. Step 2: Convert to fraction form
    783,666/1,721,452.50 = 1,721,452.50/x
  3. Step 3: Cross multiply
    783,666x = 1,721,452.50 × 1,721,452.50
  4. Step 4: Simplify right side
    783,666x = 2,963,398,709,756.25
  5. Step 5: Solve for x
    x = 2,963,398,709,756.25/783,666
  6. Step 6: Final answer
    x = 3,781,456.27

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.