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Finding the Fourth Proportional to 481,797.30, 664,885.62 and 266,940.75

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Solution

The fourth proportional to 481,797.30, 664,885.62 and 266,940.75 is: 368,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,797.30 : 664,885.62 = 266,940.75 : x
  2. Step 2: Convert to fraction form
    481,797.30/664,885.62 = 266,940.75/x
  3. Step 3: Cross multiply
    481,797.30x = 664,885.62 × 266,940.75
  4. Step 4: Simplify right side
    481,797.30x = 177,485,066,067.02
  5. Step 5: Solve for x
    x = 177,485,066,067.02/481,797.30
  6. Step 6: Final answer
    x = 368,381.20

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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.