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Finding the Fourth Proportional to 383,857.97, 529,449.76 and 332,779.37

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Solution

The fourth proportional to 383,857.97, 529,449.76 and 332,779.37 is: 458,997.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,857.97 : 529,449.76 = 332,779.37 : x
  2. Step 2: Convert to fraction form
    383,857.97/529,449.76 = 332,779.37/x
  3. Step 3: Cross multiply
    383,857.97x = 529,449.76 × 332,779.37
  4. Step 4: Simplify right side
    383,857.97x = 176,189,957,579.45
  5. Step 5: Solve for x
    x = 176,189,957,579.45/383,857.97
  6. Step 6: Final answer
    x = 458,997.78

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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.