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Finding the Fourth Proportional to 481,921.75, 665,066.60 and 267,041.71

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Solution

The fourth proportional to 481,921.75, 665,066.60 and 267,041.71 is: 368,525.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,921.75 : 665,066.60 = 267,041.71 : x
  2. Step 2: Convert to fraction form
    481,921.75/665,066.60 = 267,041.71/x
  3. Step 3: Cross multiply
    481,921.75x = 665,066.60 × 267,041.71
  4. Step 4: Simplify right side
    481,921.75x = 177,600,522,127.89
  5. Step 5: Solve for x
    x = 177,600,522,127.89/481,921.75
  6. Step 6: Final answer
    x = 368,525.64

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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.