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Finding the Third Proportional to 815,779 and 1,767,151

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Solution

The third proportional to 815,779 and 1,767,151 is: 3,828,025.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,779 : 1,767,151 = 1,767,151 : x
  2. Step 2: Convert to fraction form
    815,779/1,767,151 = 1,767,151/x
  3. Step 3: Cross multiply
    815,779x = 1,767,151 × 1,767,151
  4. Step 4: Simplify right side
    815,779x = 3,122,822,656,801
  5. Step 5: Solve for x
    x = 3,122,822,656,801/815,779
  6. Step 6: Final answer
    x = 3,828,025.31

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.