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Finding the Fourth Proportional to 481,791.42, 664,852.59 and 266,940.54

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Solution

The fourth proportional to 481,791.42, 664,852.59 and 266,940.54 is: 368,367.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,791.42 : 664,852.59 = 266,940.54 : x
  2. Step 2: Convert to fraction form
    481,791.42/664,852.59 = 266,940.54/x
  3. Step 3: Cross multiply
    481,791.42x = 664,852.59 × 266,940.54
  4. Step 4: Simplify right side
    481,791.42x = 177,476,109,395.00
  5. Step 5: Solve for x
    x = 177,476,109,395.00/481,791.42
  6. Step 6: Final answer
    x = 368,367.10

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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.