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Finding the Third Proportional to 521,889 and 1,112,121

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Solution

The third proportional to 521,889 and 1,112,121 is: 2,369,877.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,889 : 1,112,121 = 1,112,121 : x
  2. Step 2: Convert to fraction form
    521,889/1,112,121 = 1,112,121/x
  3. Step 3: Cross multiply
    521,889x = 1,112,121 × 1,112,121
  4. Step 4: Simplify right side
    521,889x = 1,236,813,118,641
  5. Step 5: Solve for x
    x = 1,236,813,118,641/521,889
  6. Step 6: Final answer
    x = 2,369,877.73

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.