Home / 383,882.75-529,756.70-211,811.43

Finding the Fourth Proportional to 383,882.75, 529,756.70 and 211,811.43

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Solution

The fourth proportional to 383,882.75, 529,756.70 and 211,811.43 is: 292,298.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,882.75 : 529,756.70 = 211,811.43 : x
  2. Step 2: Convert to fraction form
    383,882.75/529,756.70 = 211,811.43/x
  3. Step 3: Cross multiply
    383,882.75x = 529,756.70 × 211,811.43
  4. Step 4: Simplify right side
    383,882.75x = 112,208,521,530.30
  5. Step 5: Solve for x
    x = 112,208,521,530.30/383,882.75
  6. Step 6: Final answer
    x = 292,298.94

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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.