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Finding the Third Proportional to 186,934,678 and 409,049,439

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Solution

The third proportional to 186,934,678 and 409,049,439 is: 895,079,743.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,934,678 : 409,049,439 = 409,049,439 : x
  2. Step 2: Convert to fraction form
    186,934,678/409,049,439 = 409,049,439/x
  3. Step 3: Cross multiply
    186,934,678x = 409,049,439 × 409,049,439
  4. Step 4: Simplify right side
    186,934,678x = 167,321,443,546,214,720
  5. Step 5: Solve for x
    x = 167,321,443,546,214,720/186,934,678
  6. Step 6: Final answer
    x = 895,079,743.02

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.