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Finding the Third Proportional to 636,369,969.38 and 1,369,996,891.88

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Solution

The third proportional to 636,369,969.38 and 1,369,996,891.88 is: 2,949,371,551.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,369,969.38 : 1,369,996,891.88 = 1,369,996,891.88 : x
  2. Step 2: Convert to fraction form
    636,369,969.38/1,369,996,891.88 = 1,369,996,891.88/x
  3. Step 3: Cross multiply
    636,369,969.38x = 1,369,996,891.88 × 1,369,996,891.88
  4. Step 4: Simplify right side
    636,369,969.38x = 1,876,891,483,747,160,320
  5. Step 5: Solve for x
    x = 1,876,891,483,747,160,320/636,369,969.38
  6. Step 6: Final answer
    x = 2,949,371,551.25

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.