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Finding the Third Proportional to 679,066 and 1,439,081

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Solution

The third proportional to 679,066 and 1,439,081 is: 3,049,709.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,066 : 1,439,081 = 1,439,081 : x
  2. Step 2: Convert to fraction form
    679,066/1,439,081 = 1,439,081/x
  3. Step 3: Cross multiply
    679,066x = 1,439,081 × 1,439,081
  4. Step 4: Simplify right side
    679,066x = 2,070,954,124,561
  5. Step 5: Solve for x
    x = 2,070,954,124,561/679,066
  6. Step 6: Final answer
    x = 3,049,709.64

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.