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Finding the Fourth Proportional to 481,236.84, 723,163.83 and 256,755.87

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Solution

The fourth proportional to 481,236.84, 723,163.83 and 256,755.87 is: 385,831.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,236.84 : 723,163.83 = 256,755.87 : x
  2. Step 2: Convert to fraction form
    481,236.84/723,163.83 = 256,755.87/x
  3. Step 3: Cross multiply
    481,236.84x = 723,163.83 × 256,755.87
  4. Step 4: Simplify right side
    481,236.84x = 185,676,558,324.18
  5. Step 5: Solve for x
    x = 185,676,558,324.18/481,236.84
  6. Step 6: Final answer
    x = 385,831.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.