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Finding the Third Proportional to 1,379,391.19 and 2,271,309.19

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Solution

The third proportional to 1,379,391.19 and 2,271,309.19 is: 3,739,943.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,391.19 : 2,271,309.19 = 2,271,309.19 : x
  2. Step 2: Convert to fraction form
    1,379,391.19/2,271,309.19 = 2,271,309.19/x
  3. Step 3: Cross multiply
    1,379,391.19x = 2,271,309.19 × 2,271,309.19
  4. Step 4: Simplify right side
    1,379,391.19x = 5,158,845,425,221.91
  5. Step 5: Solve for x
    x = 5,158,845,425,221.91/1,379,391.19
  6. Step 6: Final answer
    x = 3,739,943.73

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.