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Finding the Third Proportional to 393,635,558 and 845,687,588

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Solution

The third proportional to 393,635,558 and 845,687,588 is: 1,816,877,266.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,635,558 : 845,687,588 = 845,687,588 : x
  2. Step 2: Convert to fraction form
    393,635,558/845,687,588 = 845,687,588/x
  3. Step 3: Cross multiply
    393,635,558x = 845,687,588 × 845,687,588
  4. Step 4: Simplify right side
    393,635,558x = 715,187,496,497,257,728
  5. Step 5: Solve for x
    x = 715,187,496,497,257,728/393,635,558
  6. Step 6: Final answer
    x = 1,816,877,266.20

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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.