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Finding the Fourth Proportional to 551,415,625.80, 827,123,438.70 and 547,589,250.60

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Solution

The fourth proportional to 551,415,625.80, 827,123,438.70 and 547,589,250.60 is: 821,383,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,415,625.80 : 827,123,438.70 = 547,589,250.60 : x
  2. Step 2: Convert to fraction form
    551,415,625.80/827,123,438.70 = 547,589,250.60/x
  3. Step 3: Cross multiply
    551,415,625.80x = 827,123,438.70 × 547,589,250.60
  4. Step 4: Simplify right side
    551,415,625.80x = 452,923,903,951,428,096
  5. Step 5: Solve for x
    x = 452,923,903,951,428,096/551,415,625.80
  6. Step 6: Final answer
    x = 821,383,875.90

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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.