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Finding the Third Proportional to 696,987 and 1,511,990

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Solution

The third proportional to 696,987 and 1,511,990 is: 3,279,994.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,987 : 1,511,990 = 1,511,990 : x
  2. Step 2: Convert to fraction form
    696,987/1,511,990 = 1,511,990/x
  3. Step 3: Cross multiply
    696,987x = 1,511,990 × 1,511,990
  4. Step 4: Simplify right side
    696,987x = 2,286,113,760,100
  5. Step 5: Solve for x
    x = 2,286,113,760,100/696,987
  6. Step 6: Final answer
    x = 3,279,994.84

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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.