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Finding the Fourth Proportional to 5,783,796.80, 8,669,474.40 and 2,188,174.40

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Solution

The fourth proportional to 5,783,796.80, 8,669,474.40 and 2,188,174.40 is: 3,279,908.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,783,796.80 : 8,669,474.40 = 2,188,174.40 : x
  2. Step 2: Convert to fraction form
    5,783,796.80/8,669,474.40 = 2,188,174.40/x
  3. Step 3: Cross multiply
    5,783,796.80x = 8,669,474.40 × 2,188,174.40
  4. Step 4: Simplify right side
    5,783,796.80x = 18,970,321,943,535.36
  5. Step 5: Solve for x
    x = 18,970,321,943,535.36/5,783,796.80
  6. Step 6: Final answer
    x = 3,279,908.09

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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.