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Finding the Third Proportional to 810,879 and 1,230,543

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Solution

The third proportional to 810,879 and 1,230,543 is: 1,867,400.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,879 : 1,230,543 = 1,230,543 : x
  2. Step 2: Convert to fraction form
    810,879/1,230,543 = 1,230,543/x
  3. Step 3: Cross multiply
    810,879x = 1,230,543 × 1,230,543
  4. Step 4: Simplify right side
    810,879x = 1,514,236,074,849
  5. Step 5: Solve for x
    x = 1,514,236,074,849/810,879
  6. Step 6: Final answer
    x = 1,867,400.78

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.