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Finding the Fourth Proportional to 484,993.73, 669,222.78 and 275,434.49

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Solution

The fourth proportional to 484,993.73, 669,222.78 and 275,434.49 is: 380,060.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,993.73 : 669,222.78 = 275,434.49 : x
  2. Step 2: Convert to fraction form
    484,993.73/669,222.78 = 275,434.49/x
  3. Step 3: Cross multiply
    484,993.73x = 669,222.78 × 275,434.49
  4. Step 4: Simplify right side
    484,993.73x = 184,327,035,105.68
  5. Step 5: Solve for x
    x = 184,327,035,105.68/484,993.73
  6. Step 6: Final answer
    x = 380,060.66

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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.