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Finding the Fourth Proportional to 363,942.56, 545,248.83 and 263,854.64

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Solution

The fourth proportional to 363,942.56, 545,248.83 and 263,854.64 is: 395,299.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,942.56 : 545,248.83 = 263,854.64 : x
  2. Step 2: Convert to fraction form
    363,942.56/545,248.83 = 263,854.64/x
  3. Step 3: Cross multiply
    363,942.56x = 545,248.83 × 263,854.64
  4. Step 4: Simplify right side
    363,942.56x = 143,866,433,750.07
  5. Step 5: Solve for x
    x = 143,866,433,750.07/363,942.56
  6. Step 6: Final answer
    x = 395,299.83

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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.