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Finding the Fourth Proportional to 263,785.98, 395,263.94 and 203,960.58

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Solution

The fourth proportional to 263,785.98, 395,263.94 and 203,960.58 is: 305,619.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,785.98 : 395,263.94 = 203,960.58 : x
  2. Step 2: Convert to fraction form
    263,785.98/395,263.94 = 203,960.58/x
  3. Step 3: Cross multiply
    263,785.98x = 395,263.94 × 203,960.58
  4. Step 4: Simplify right side
    263,785.98x = 80,618,262,455.49
  5. Step 5: Solve for x
    x = 80,618,262,455.49/263,785.98
  6. Step 6: Final answer
    x = 305,619.97

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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.