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Finding the Fourth Proportional to 481,911.57, 665,041.89 and 267,055.20

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Solution

The fourth proportional to 481,911.57, 665,041.89 and 267,055.20 is: 368,538.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,911.57 : 665,041.89 = 267,055.20 : x
  2. Step 2: Convert to fraction form
    481,911.57/665,041.89 = 267,055.20/x
  3. Step 3: Cross multiply
    481,911.57x = 665,041.89 × 267,055.20
  4. Step 4: Simplify right side
    481,911.57x = 177,602,894,942.33
  5. Step 5: Solve for x
    x = 177,602,894,942.33/481,911.57
  6. Step 6: Final answer
    x = 368,538.35

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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.