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Finding the Third Proportional to 859,621 and 1,325,517

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Solution

The third proportional to 859,621 and 1,325,517 is: 2,043,918.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,621 : 1,325,517 = 1,325,517 : x
  2. Step 2: Convert to fraction form
    859,621/1,325,517 = 1,325,517/x
  3. Step 3: Cross multiply
    859,621x = 1,325,517 × 1,325,517
  4. Step 4: Simplify right side
    859,621x = 1,756,995,317,289
  5. Step 5: Solve for x
    x = 1,756,995,317,289/859,621
  6. Step 6: Final answer
    x = 2,043,918.56

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.