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Finding the Fourth Proportional to 383,842.52, 529,732.07 and 211,793.69

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Solution

The fourth proportional to 383,842.52, 529,732.07 and 211,793.69 is: 292,291.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,842.52 : 529,732.07 = 211,793.69 : x
  2. Step 2: Convert to fraction form
    383,842.52/529,732.07 = 211,793.69/x
  3. Step 3: Cross multiply
    383,842.52x = 529,732.07 × 211,793.69
  4. Step 4: Simplify right side
    383,842.52x = 112,193,908,757.67
  5. Step 5: Solve for x
    x = 112,193,908,757.67/383,842.52
  6. Step 6: Final answer
    x = 292,291.51

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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.