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Finding the Third Proportional to 861,206 and 1,344,129

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Solution

The third proportional to 861,206 and 1,344,129 is: 2,097,852.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,206 : 1,344,129 = 1,344,129 : x
  2. Step 2: Convert to fraction form
    861,206/1,344,129 = 1,344,129/x
  3. Step 3: Cross multiply
    861,206x = 1,344,129 × 1,344,129
  4. Step 4: Simplify right side
    861,206x = 1,806,682,768,641
  5. Step 5: Solve for x
    x = 1,806,682,768,641/861,206
  6. Step 6: Final answer
    x = 2,097,852.05

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.