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Finding the Third Proportional to 789,461.44 and 1,221,917.91

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Solution

The third proportional to 789,461.44 and 1,221,917.91 is: 1,891,268.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,461.44 : 1,221,917.91 = 1,221,917.91 : x
  2. Step 2: Convert to fraction form
    789,461.44/1,221,917.91 = 1,221,917.91/x
  3. Step 3: Cross multiply
    789,461.44x = 1,221,917.91 × 1,221,917.91
  4. Step 4: Simplify right side
    789,461.44x = 1,493,083,369,614.38
  5. Step 5: Solve for x
    x = 1,493,083,369,614.38/789,461.44
  6. Step 6: Final answer
    x = 1,891,268.27

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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.