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Finding the Third Proportional to 717,974 and 1,126,389

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Solution

The third proportional to 717,974 and 1,126,389 is: 1,767,128.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,974 : 1,126,389 = 1,126,389 : x
  2. Step 2: Convert to fraction form
    717,974/1,126,389 = 1,126,389/x
  3. Step 3: Cross multiply
    717,974x = 1,126,389 × 1,126,389
  4. Step 4: Simplify right side
    717,974x = 1,268,752,179,321
  5. Step 5: Solve for x
    x = 1,268,752,179,321/717,974
  6. Step 6: Final answer
    x = 1,767,128.31

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.