Home / 383,883.87-529,789.77-211,835.97

Finding the Fourth Proportional to 383,883.87, 529,789.77 and 211,835.97

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Solution

The fourth proportional to 383,883.87, 529,789.77 and 211,835.97 is: 292,350.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,883.87 : 529,789.77 = 211,835.97 : x
  2. Step 2: Convert to fraction form
    383,883.87/529,789.77 = 211,835.97/x
  3. Step 3: Cross multiply
    383,883.87x = 529,789.77 × 211,835.97
  4. Step 4: Simplify right side
    383,883.87x = 112,228,529,824.03
  5. Step 5: Solve for x
    x = 112,228,529,824.03/383,883.87
  6. Step 6: Final answer
    x = 292,350.21

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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.