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Finding the Third Proportional to 887,782 and 1,391,173

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Solution

The third proportional to 887,782 and 1,391,173 is: 2,179,997.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,782 : 1,391,173 = 1,391,173 : x
  2. Step 2: Convert to fraction form
    887,782/1,391,173 = 1,391,173/x
  3. Step 3: Cross multiply
    887,782x = 1,391,173 × 1,391,173
  4. Step 4: Simplify right side
    887,782x = 1,935,362,315,929
  5. Step 5: Solve for x
    x = 1,935,362,315,929/887,782
  6. Step 6: Final answer
    x = 2,179,997.25

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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.