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Finding the Fourth Proportional to 481,928.16, 665,064.72 and 267,071.79

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Solution

The fourth proportional to 481,928.16, 665,064.72 and 267,071.79 is: 368,561.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,928.16 : 665,064.72 = 267,071.79 : x
  2. Step 2: Convert to fraction form
    481,928.16/665,064.72 = 267,071.79/x
  3. Step 3: Cross multiply
    481,928.16x = 665,064.72 × 267,071.79
  4. Step 4: Simplify right side
    481,928.16x = 177,620,025,236.25
  5. Step 5: Solve for x
    x = 177,620,025,236.25/481,928.16
  6. Step 6: Final answer
    x = 368,561.21

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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.