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Finding the Fourth Proportional to 481,984.53, 665,138.71 and 267,138.46

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Solution

The fourth proportional to 481,984.53, 665,138.71 and 267,138.46 is: 368,651.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,984.53 : 665,138.71 = 267,138.46 : x
  2. Step 2: Convert to fraction form
    481,984.53/665,138.71 = 267,138.46/x
  3. Step 3: Cross multiply
    481,984.53x = 665,138.71 × 267,138.46
  4. Step 4: Simplify right side
    481,984.53x = 177,684,130,675.79
  5. Step 5: Solve for x
    x = 177,684,130,675.79/481,984.53
  6. Step 6: Final answer
    x = 368,651.11

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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.