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Finding the Third Proportional to 252,166,215 and 395,538,540

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Solution

The third proportional to 252,166,215 and 395,538,540 is: 620,427,033.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,166,215 : 395,538,540 = 395,538,540 : x
  2. Step 2: Convert to fraction form
    252,166,215/395,538,540 = 395,538,540/x
  3. Step 3: Cross multiply
    252,166,215x = 395,538,540 × 395,538,540
  4. Step 4: Simplify right side
    252,166,215x = 156,450,736,625,331,584
  5. Step 5: Solve for x
    x = 156,450,736,625,331,584/252,166,215
  6. Step 6: Final answer
    x = 620,427,033.12

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.