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Finding the Third Proportional to 1,279,920.38 and 2,749,784.44

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Solution

The third proportional to 1,279,920.38 and 2,749,784.44 is: 5,907,644.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,920.38 : 2,749,784.44 = 2,749,784.44 : x
  2. Step 2: Convert to fraction form
    1,279,920.38/2,749,784.44 = 2,749,784.44/x
  3. Step 3: Cross multiply
    1,279,920.38x = 2,749,784.44 × 2,749,784.44
  4. Step 4: Simplify right side
    1,279,920.38x = 7,561,314,452,717.19
  5. Step 5: Solve for x
    x = 7,561,314,452,717.19/1,279,920.38
  6. Step 6: Final answer
    x = 5,907,644.41

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.