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Finding the Fourth Proportional to 6,382,771.77, 8,807,917.99 and 3,481,989.65

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Solution

The fourth proportional to 6,382,771.77, 8,807,917.99 and 3,481,989.65 is: 4,804,978.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,382,771.77 : 8,807,917.99 = 3,481,989.65 : x
  2. Step 2: Convert to fraction form
    6,382,771.77/8,807,917.99 = 3,481,989.65/x
  3. Step 3: Cross multiply
    6,382,771.77x = 8,807,917.99 × 3,481,989.65
  4. Step 4: Simplify right side
    6,382,771.77x = 30,669,079,279,228.80
  5. Step 5: Solve for x
    x = 30,669,079,279,228.80/6,382,771.77
  6. Step 6: Final answer
    x = 4,804,978.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.