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Finding the Fourth Proportional to 397,367.00, 548,349.78 and 225,296.55

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Solution

The fourth proportional to 397,367.00, 548,349.78 and 225,296.55 is: 310,899.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,367.00 : 548,349.78 = 225,296.55 : x
  2. Step 2: Convert to fraction form
    397,367.00/548,349.78 = 225,296.55/x
  3. Step 3: Cross multiply
    397,367.00x = 548,349.78 × 225,296.55
  4. Step 4: Simplify right side
    397,367.00x = 123,541,309,759.03
  5. Step 5: Solve for x
    x = 123,541,309,759.03/397,367.00
  6. Step 6: Final answer
    x = 310,899.77

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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.