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Finding the Fourth Proportional to 484,991.73, 669,220.02 and 275,432.49

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Solution

The fourth proportional to 484,991.73, 669,220.02 and 275,432.49 is: 380,057.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,991.73 : 669,220.02 = 275,432.49 : x
  2. Step 2: Convert to fraction form
    484,991.73/669,220.02 = 275,432.49/x
  3. Step 3: Cross multiply
    484,991.73x = 669,220.02 × 275,432.49
  4. Step 4: Simplify right side
    484,991.73x = 184,324,936,466.45
  5. Step 5: Solve for x
    x = 184,324,936,466.45/484,991.73
  6. Step 6: Final answer
    x = 380,057.90

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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.