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Finding the Fourth Proportional to 551,415,637.80, 827,123,456.70 and 547,589,262.60

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Solution

The fourth proportional to 551,415,637.80, 827,123,456.70 and 547,589,262.60 is: 821,383,893.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,415,637.80 : 827,123,456.70 = 547,589,262.60 : x
  2. Step 2: Convert to fraction form
    551,415,637.80/827,123,456.70 = 547,589,262.60/x
  3. Step 3: Cross multiply
    551,415,637.80x = 827,123,456.70 × 547,589,262.60
  4. Step 4: Simplify right side
    551,415,637.80x = 452,923,923,733,516,096
  5. Step 5: Solve for x
    x = 452,923,923,733,516,096/551,415,637.80
  6. Step 6: Final answer
    x = 821,383,893.90

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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.