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Finding the Third Proportional to 1,917,856 and 2,911,777

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Solution

The third proportional to 1,917,856 and 2,911,777 is: 4,420,793.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,856 : 2,911,777 = 2,911,777 : x
  2. Step 2: Convert to fraction form
    1,917,856/2,911,777 = 2,911,777/x
  3. Step 3: Cross multiply
    1,917,856x = 2,911,777 × 2,911,777
  4. Step 4: Simplify right side
    1,917,856x = 8,478,445,297,729
  5. Step 5: Solve for x
    x = 8,478,445,297,729/1,917,856
  6. Step 6: Final answer
    x = 4,420,793.48

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.