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Finding the Third Proportional to 386,597,493,372 and 784,218,335,256

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Solution

The third proportional to 386,597,493,372 and 784,218,335,256 is: 1,590,797,684,660.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,597,493,372 : 784,218,335,256 = 784,218,335,256 : x
  2. Step 2: Convert to fraction form
    386,597,493,372/784,218,335,256 = 784,218,335,256/x
  3. Step 3: Cross multiply
    386,597,493,372x = 784,218,335,256 × 784,218,335,256
  4. Step 4: Simplify right side
    386,597,493,372x = 614,998,397,351,691,997,413,376
  5. Step 5: Solve for x
    x = 614,998,397,351,691,997,413,376/386,597,493,372
  6. Step 6: Final answer
    x = 1,590,797,684,660.40

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.