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Finding the Third Proportional to 215,156,834 and 322,955,571

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Solution

The third proportional to 215,156,834 and 322,955,571 is: 484,764,062.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,156,834 : 322,955,571 = 322,955,571 : x
  2. Step 2: Convert to fraction form
    215,156,834/322,955,571 = 322,955,571/x
  3. Step 3: Cross multiply
    215,156,834x = 322,955,571 × 322,955,571
  4. Step 4: Simplify right side
    215,156,834x = 104,300,300,839,936,048
  5. Step 5: Solve for x
    x = 104,300,300,839,936,048/215,156,834
  6. Step 6: Final answer
    x = 484,764,062.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.