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Finding the Third Proportional to 696,986 and 1,511,988

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Solution

The third proportional to 696,986 and 1,511,988 is: 3,279,990.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,986 : 1,511,988 = 1,511,988 : x
  2. Step 2: Convert to fraction form
    696,986/1,511,988 = 1,511,988/x
  3. Step 3: Cross multiply
    696,986x = 1,511,988 × 1,511,988
  4. Step 4: Simplify right side
    696,986x = 2,286,107,712,144
  5. Step 5: Solve for x
    x = 2,286,107,712,144/696,986
  6. Step 6: Final answer
    x = 3,279,990.86

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.