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Finding the Fourth Proportional to 383,884.01, 529,756.24 and 211,803.37

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Solution

The fourth proportional to 383,884.01, 529,756.24 and 211,803.37 is: 292,286.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,884.01 : 529,756.24 = 211,803.37 : x
  2. Step 2: Convert to fraction form
    383,884.01/529,756.24 = 211,803.37/x
  3. Step 3: Cross multiply
    383,884.01x = 529,756.24 × 211,803.37
  4. Step 4: Simplify right side
    383,884.01x = 112,204,156,910.53
  5. Step 5: Solve for x
    x = 112,204,156,910.53/383,884.01
  6. Step 6: Final answer
    x = 292,286.61

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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.