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Finding the Fourth Proportional to 481,879.13, 665,019.72 and 267,014.48

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Solution

The fourth proportional to 481,879.13, 665,019.72 and 267,014.48 is: 368,494.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,879.13 : 665,019.72 = 267,014.48 : x
  2. Step 2: Convert to fraction form
    481,879.13/665,019.72 = 267,014.48/x
  3. Step 3: Cross multiply
    481,879.13x = 665,019.72 × 267,014.48
  4. Step 4: Simplify right side
    481,879.13x = 177,569,891,400.45
  5. Step 5: Solve for x
    x = 177,569,891,400.45/481,879.13
  6. Step 6: Final answer
    x = 368,494.67

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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.