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Finding the Fourth Proportional to 481,796.30, 664,884.24 and 266,939.75

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Solution

The fourth proportional to 481,796.30, 664,884.24 and 266,939.75 is: 368,379.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,796.30 : 664,884.24 = 266,939.75 : x
  2. Step 2: Convert to fraction form
    481,796.30/664,884.24 = 266,939.75/x
  3. Step 3: Cross multiply
    481,796.30x = 664,884.24 × 266,939.75
  4. Step 4: Simplify right side
    481,796.30x = 177,484,032,804.54
  5. Step 5: Solve for x
    x = 177,484,032,804.54/481,796.30
  6. Step 6: Final answer
    x = 368,379.82

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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.