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Finding the Third Proportional to 393,188,179.50 and 655,235,059.50

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Solution

The third proportional to 393,188,179.50 and 655,235,059.50 is: 1,091,927,493.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,188,179.50 : 655,235,059.50 = 655,235,059.50 : x
  2. Step 2: Convert to fraction form
    393,188,179.50/655,235,059.50 = 655,235,059.50/x
  3. Step 3: Cross multiply
    393,188,179.50x = 655,235,059.50 × 655,235,059.50
  4. Step 4: Simplify right side
    393,188,179.50x = 429,332,983,197,968,512
  5. Step 5: Solve for x
    x = 429,332,983,197,968,512/393,188,179.50
  6. Step 6: Final answer
    x = 1,091,927,493.20

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.