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Finding the Fourth Proportional to 533,841,036.80, 800,761,555.20 and 419,179,251.20

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Solution

The fourth proportional to 533,841,036.80, 800,761,555.20 and 419,179,251.20 is: 628,768,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,841,036.80 : 800,761,555.20 = 419,179,251.20 : x
  2. Step 2: Convert to fraction form
    533,841,036.80/800,761,555.20 = 419,179,251.20/x
  3. Step 3: Cross multiply
    533,841,036.80x = 800,761,555.20 × 419,179,251.20
  4. Step 4: Simplify right side
    533,841,036.80x = 335,662,629,098,483,456
  5. Step 5: Solve for x
    x = 335,662,629,098,483,456/533,841,036.80
  6. Step 6: Final answer
    x = 628,768,876.80

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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.