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Finding the Third Proportional to 667,698 and 1,442,310

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Solution

The third proportional to 667,698 and 1,442,310 is: 3,115,567.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,698 : 1,442,310 = 1,442,310 : x
  2. Step 2: Convert to fraction form
    667,698/1,442,310 = 1,442,310/x
  3. Step 3: Cross multiply
    667,698x = 1,442,310 × 1,442,310
  4. Step 4: Simplify right side
    667,698x = 2,080,258,136,100
  5. Step 5: Solve for x
    x = 2,080,258,136,100/667,698
  6. Step 6: Final answer
    x = 3,115,567.42

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.