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Finding the Third Proportional to 861,317,472 and 1,889,387,868

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Solution

The third proportional to 861,317,472 and 1,889,387,868 is: 4,144,565,310.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,317,472 : 1,889,387,868 = 1,889,387,868 : x
  2. Step 2: Convert to fraction form
    861,317,472/1,889,387,868 = 1,889,387,868/x
  3. Step 3: Cross multiply
    861,317,472x = 1,889,387,868 × 1,889,387,868
  4. Step 4: Simplify right side
    861,317,472x = 3,569,786,515,745,585,664
  5. Step 5: Solve for x
    x = 3,569,786,515,745,585,664/861,317,472
  6. Step 6: Final answer
    x = 4,144,565,310.46

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.