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Finding the Fourth Proportional to 363,602.91, 545,221.86 and 211,849.11

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Solution

The fourth proportional to 363,602.91, 545,221.86 and 211,849.11 is: 317,667.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,602.91 : 545,221.86 = 211,849.11 : x
  2. Step 2: Convert to fraction form
    363,602.91/545,221.86 = 211,849.11/x
  3. Step 3: Cross multiply
    363,602.91x = 545,221.86 × 211,849.11
  4. Step 4: Simplify right side
    363,602.91x = 115,504,765,793.55
  5. Step 5: Solve for x
    x = 115,504,765,793.55/363,602.91
  6. Step 6: Final answer
    x = 317,667.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.