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Finding the Fourth Proportional to 267,215,212.20, 400,822,818.30 and 267,215,212.20

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Solution

The fourth proportional to 267,215,212.20, 400,822,818.30 and 267,215,212.20 is: 400,822,818.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,215,212.20 : 400,822,818.30 = 267,215,212.20 : x
  2. Step 2: Convert to fraction form
    267,215,212.20/400,822,818.30 = 267,215,212.20/x
  3. Step 3: Cross multiply
    267,215,212.20x = 400,822,818.30 × 267,215,212.20
  4. Step 4: Simplify right side
    267,215,212.20x = 107,105,954,446,636,544
  5. Step 5: Solve for x
    x = 107,105,954,446,636,544/267,215,212.20
  6. Step 6: Final answer
    x = 400,822,818.30

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1.5x scale

Why These Related Problems?

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