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Finding the Fourth Proportional to 252,720,412.20, 379,080,618.30 and 252,720,412.20

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Solution

The fourth proportional to 252,720,412.20, 379,080,618.30 and 252,720,412.20 is: 379,080,618.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,720,412.20 : 379,080,618.30 = 252,720,412.20 : x
  2. Step 2: Convert to fraction form
    252,720,412.20/379,080,618.30 = 252,720,412.20/x
  3. Step 3: Cross multiply
    252,720,412.20x = 379,080,618.30 × 252,720,412.20
  4. Step 4: Simplify right side
    252,720,412.20x = 95,801,410,113,806,864
  5. Step 5: Solve for x
    x = 95,801,410,113,806,864/252,720,412.20
  6. Step 6: Final answer
    x = 379,080,618.30

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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.