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Finding the Third Proportional to 861,317,486 and 1,889,387,896

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Solution

The third proportional to 861,317,486 and 1,889,387,896 is: 4,144,565,365.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,317,486 : 1,889,387,896 = 1,889,387,896 : x
  2. Step 2: Convert to fraction form
    861,317,486/1,889,387,896 = 1,889,387,896/x
  3. Step 3: Cross multiply
    861,317,486x = 1,889,387,896 × 1,889,387,896
  4. Step 4: Simplify right side
    861,317,486x = 3,569,786,621,551,306,752
  5. Step 5: Solve for x
    x = 3,569,786,621,551,306,752/861,317,486
  6. Step 6: Final answer
    x = 4,144,565,365.94

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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.