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Finding the Third Proportional to 393,679,884 and 919,813,854

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Solution

The third proportional to 393,679,884 and 919,813,854 is: 2,149,100,221.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,679,884 : 919,813,854 = 919,813,854 : x
  2. Step 2: Convert to fraction form
    393,679,884/919,813,854 = 919,813,854/x
  3. Step 3: Cross multiply
    393,679,884x = 919,813,854 × 919,813,854
  4. Step 4: Simplify right side
    393,679,884x = 846,057,526,010,333,312
  5. Step 5: Solve for x
    x = 846,057,526,010,333,312/393,679,884
  6. Step 6: Final answer
    x = 2,149,100,221.77

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.