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Finding the Fourth Proportional to 383,793.80, 529,623.78 and 214,056.68

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Solution

The fourth proportional to 383,793.80, 529,623.78 and 214,056.68 is: 295,391.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,793.80 : 529,623.78 = 214,056.68 : x
  2. Step 2: Convert to fraction form
    383,793.80/529,623.78 = 214,056.68/x
  3. Step 3: Cross multiply
    383,793.80x = 529,623.78 × 214,056.68
  4. Step 4: Simplify right side
    383,793.80x = 113,369,507,995.85
  5. Step 5: Solve for x
    x = 113,369,507,995.85/383,793.80
  6. Step 6: Final answer
    x = 295,391.71

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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.