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Finding the Fourth Proportional to 481,966.40, 665,113.62 and 267,120.30

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Solution

The fourth proportional to 481,966.40, 665,113.62 and 267,120.30 is: 368,626.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,966.40 : 665,113.62 = 267,120.30 : x
  2. Step 2: Convert to fraction form
    481,966.40/665,113.62 = 267,120.30/x
  3. Step 3: Cross multiply
    481,966.40x = 665,113.62 × 267,120.30
  4. Step 4: Simplify right side
    481,966.40x = 177,665,349,708.49
  5. Step 5: Solve for x
    x = 177,665,349,708.49/481,966.40
  6. Step 6: Final answer
    x = 368,626.01

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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.