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Finding the Fourth Proportional to 363,463.60, 545,195.40 and 263,930.80

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Solution

The fourth proportional to 363,463.60, 545,195.40 and 263,930.80 is: 395,896.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,463.60 : 545,195.40 = 263,930.80 : x
  2. Step 2: Convert to fraction form
    363,463.60/545,195.40 = 263,930.80/x
  3. Step 3: Cross multiply
    363,463.60x = 545,195.40 × 263,930.80
  4. Step 4: Simplify right side
    363,463.60x = 143,893,858,078.32
  5. Step 5: Solve for x
    x = 143,893,858,078.32/363,463.60
  6. Step 6: Final answer
    x = 395,896.20

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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.