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Finding the Third Proportional to 688,682 and 1,491,748

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Solution

The third proportional to 688,682 and 1,491,748 is: 3,231,262.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,682 : 1,491,748 = 1,491,748 : x
  2. Step 2: Convert to fraction form
    688,682/1,491,748 = 1,491,748/x
  3. Step 3: Cross multiply
    688,682x = 1,491,748 × 1,491,748
  4. Step 4: Simplify right side
    688,682x = 2,225,312,095,504
  5. Step 5: Solve for x
    x = 2,225,312,095,504/688,682
  6. Step 6: Final answer
    x = 3,231,262.17

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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.