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Finding the Fourth Proportional to 481,293.75, 664,222.26 and 274,566.69

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Solution

The fourth proportional to 481,293.75, 664,222.26 and 274,566.69 is: 378,923.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,293.75 : 664,222.26 = 274,566.69 : x
  2. Step 2: Convert to fraction form
    481,293.75/664,222.26 = 274,566.69/x
  3. Step 3: Cross multiply
    481,293.75x = 664,222.26 × 274,566.69
  4. Step 4: Simplify right side
    481,293.75x = 182,373,307,352.52
  5. Step 5: Solve for x
    x = 182,373,307,352.52/481,293.75
  6. Step 6: Final answer
    x = 378,923.07

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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.