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Finding the Fourth Proportional to 481,904.12, 665,031.60 and 267,047.78

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Solution

The fourth proportional to 481,904.12, 665,031.60 and 267,047.78 is: 368,528.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,904.12 : 665,031.60 = 267,047.78 : x
  2. Step 2: Convert to fraction form
    481,904.12/665,031.60 = 267,047.78/x
  3. Step 3: Cross multiply
    481,904.12x = 665,031.60 × 267,047.78
  4. Step 4: Simplify right side
    481,904.12x = 177,595,212,409.85
  5. Step 5: Solve for x
    x = 177,595,212,409.85/481,904.12
  6. Step 6: Final answer
    x = 368,528.11

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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.