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Finding the Fourth Proportional to 543,971.53, 815,373.94 and 263,102.41

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Solution

The fourth proportional to 543,971.53, 815,373.94 and 263,102.41 is: 394,371.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,971.53 : 815,373.94 = 263,102.41 : x
  2. Step 2: Convert to fraction form
    543,971.53/815,373.94 = 263,102.41/x
  3. Step 3: Cross multiply
    543,971.53x = 815,373.94 × 263,102.41
  4. Step 4: Simplify right side
    543,971.53x = 214,526,847,349.68
  5. Step 5: Solve for x
    x = 214,526,847,349.68/543,971.53
  6. Step 6: Final answer
    x = 394,371.46

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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.