Home / 383,977.70-529,889.45-214,211.83

Finding the Fourth Proportional to 383,977.70, 529,889.45 and 214,211.83

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Solution

The fourth proportional to 383,977.70, 529,889.45 and 214,211.83 is: 295,612.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,977.70 : 529,889.45 = 214,211.83 : x
  2. Step 2: Convert to fraction form
    383,977.70/529,889.45 = 214,211.83/x
  3. Step 3: Cross multiply
    383,977.70x = 529,889.45 × 214,211.83
  4. Step 4: Simplify right side
    383,977.70x = 113,508,586,132.75
  5. Step 5: Solve for x
    x = 113,508,586,132.75/383,977.70
  6. Step 6: Final answer
    x = 295,612.44

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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.