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Finding the Third Proportional to 635,836.50 and 891,112.50

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Solution

The third proportional to 635,836.50 and 891,112.50 is: 1,248,876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,836.50 : 891,112.50 = 891,112.50 : x
  2. Step 2: Convert to fraction form
    635,836.50/891,112.50 = 891,112.50/x
  3. Step 3: Cross multiply
    635,836.50x = 891,112.50 × 891,112.50
  4. Step 4: Simplify right side
    635,836.50x = 794,081,487,656.25
  5. Step 5: Solve for x
    x = 794,081,487,656.25/635,836.50
  6. Step 6: Final answer
    x = 1,248,876.85

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.