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Finding the Third Proportional to 860,949 and 1,340,631

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Solution

The third proportional to 860,949 and 1,340,631 is: 2,087,570.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,949 : 1,340,631 = 1,340,631 : x
  2. Step 2: Convert to fraction form
    860,949/1,340,631 = 1,340,631/x
  3. Step 3: Cross multiply
    860,949x = 1,340,631 × 1,340,631
  4. Step 4: Simplify right side
    860,949x = 1,797,291,478,161
  5. Step 5: Solve for x
    x = 1,797,291,478,161/860,949
  6. Step 6: Final answer
    x = 2,087,570.20

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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.