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Finding the Third Proportional to 191,217,126 and 422,628,619

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Solution

The third proportional to 191,217,126 and 422,628,619 is: 934,094,938.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,217,126 : 422,628,619 = 422,628,619 : x
  2. Step 2: Convert to fraction form
    191,217,126/422,628,619 = 422,628,619/x
  3. Step 3: Cross multiply
    191,217,126x = 422,628,619 × 422,628,619
  4. Step 4: Simplify right side
    191,217,126x = 178,614,949,597,847,168
  5. Step 5: Solve for x
    x = 178,614,949,597,847,168/191,217,126
  6. Step 6: Final answer
    x = 934,094,938.74

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.