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Finding the Third Proportional to 1,384,474.78 and 2,990,773.13

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Solution

The third proportional to 1,384,474.78 and 2,990,773.13 is: 6,460,734.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,474.78 : 2,990,773.13 = 2,990,773.13 : x
  2. Step 2: Convert to fraction form
    1,384,474.78/2,990,773.13 = 2,990,773.13/x
  3. Step 3: Cross multiply
    1,384,474.78x = 2,990,773.13 × 2,990,773.13
  4. Step 4: Simplify right side
    1,384,474.78x = 8,944,723,885,222.27
  5. Step 5: Solve for x
    x = 8,944,723,885,222.27/1,384,474.78
  6. Step 6: Final answer
    x = 6,460,734.43

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.