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Finding the Fourth Proportional to 481,321.76, 664,197.69 and 263,488.31

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Solution

The fourth proportional to 481,321.76, 664,197.69 and 263,488.31 is: 363,599.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,321.76 : 664,197.69 = 263,488.31 : x
  2. Step 2: Convert to fraction form
    481,321.76/664,197.69 = 263,488.31/x
  3. Step 3: Cross multiply
    481,321.76x = 664,197.69 × 263,488.31
  4. Step 4: Simplify right side
    481,321.76x = 175,008,323,523.02
  5. Step 5: Solve for x
    x = 175,008,323,523.02/481,321.76
  6. Step 6: Final answer
    x = 363,599.44

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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.