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Finding the Fourth Proportional to 481,292.73, 664,220.85 and 274,565.67

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Solution

The fourth proportional to 481,292.73, 664,220.85 and 274,565.67 is: 378,921.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,292.73 : 664,220.85 = 274,565.67 : x
  2. Step 2: Convert to fraction form
    481,292.73/664,220.85 = 274,565.67/x
  3. Step 3: Cross multiply
    481,292.73x = 664,220.85 × 274,565.67
  4. Step 4: Simplify right side
    481,292.73x = 182,372,242,708.22
  5. Step 5: Solve for x
    x = 182,372,242,708.22/481,292.73
  6. Step 6: Final answer
    x = 378,921.67

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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.