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Finding the Fourth Proportional to 481,921.35, 665,055.32 and 267,064.98

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Solution

The fourth proportional to 481,921.35, 665,055.32 and 267,064.98 is: 368,551.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,921.35 : 665,055.32 = 267,064.98 : x
  2. Step 2: Convert to fraction form
    481,921.35/665,055.32 = 267,064.98/x
  3. Step 3: Cross multiply
    481,921.35x = 665,055.32 × 267,064.98
  4. Step 4: Simplify right side
    481,921.35x = 177,612,984,399.37
  5. Step 5: Solve for x
    x = 177,612,984,399.37/481,921.35
  6. Step 6: Final answer
    x = 368,551.81

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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.