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Finding the Third Proportional to 681,672,174.75 and 1,490,889,945.75

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Solution

The third proportional to 681,672,174.75 and 1,490,889,945.75 is: 3,260,735,750.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,672,174.75 : 1,490,889,945.75 = 1,490,889,945.75 : x
  2. Step 2: Convert to fraction form
    681,672,174.75/1,490,889,945.75 = 1,490,889,945.75/x
  3. Step 3: Cross multiply
    681,672,174.75x = 1,490,889,945.75 × 1,490,889,945.75
  4. Step 4: Simplify right side
    681,672,174.75x = 2,222,752,830,338,437,888
  5. Step 5: Solve for x
    x = 2,222,752,830,338,437,888/681,672,174.75
  6. Step 6: Final answer
    x = 3,260,735,750.51

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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.