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Finding the Third Proportional to 1,286,450.25 and 1,691,656.50

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Solution

The third proportional to 1,286,450.25 and 1,691,656.50 is: 2,224,494.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,450.25 : 1,691,656.50 = 1,691,656.50 : x
  2. Step 2: Convert to fraction form
    1,286,450.25/1,691,656.50 = 1,691,656.50/x
  3. Step 3: Cross multiply
    1,286,450.25x = 1,691,656.50 × 1,691,656.50
  4. Step 4: Simplify right side
    1,286,450.25x = 2,861,701,713,992.25
  5. Step 5: Solve for x
    x = 2,861,701,713,992.25/1,286,450.25
  6. Step 6: Final answer
    x = 2,224,494.66

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.