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Finding the Fourth Proportional to 383,562.89, 529,379.17 and 230,755.53

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Solution

The fourth proportional to 383,562.89, 529,379.17 and 230,755.53 is: 318,480.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,562.89 : 529,379.17 = 230,755.53 : x
  2. Step 2: Convert to fraction form
    383,562.89/529,379.17 = 230,755.53/x
  3. Step 3: Cross multiply
    383,562.89x = 529,379.17 × 230,755.53
  4. Step 4: Simplify right side
    383,562.89x = 122,157,170,944.31
  5. Step 5: Solve for x
    x = 122,157,170,944.31/383,562.89
  6. Step 6: Final answer
    x = 318,480.16

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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.