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Finding the Fourth Proportional to 363,604.66, 545,224.48 and 211,850.86

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Solution

The fourth proportional to 363,604.66, 545,224.48 and 211,850.86 is: 317,669.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,604.66 : 545,224.48 = 211,850.86 : x
  2. Step 2: Convert to fraction form
    363,604.66/545,224.48 = 211,850.86/x
  3. Step 3: Cross multiply
    363,604.66x = 545,224.48 × 211,850.86
  4. Step 4: Simplify right side
    363,604.66x = 115,506,274,981.05
  5. Step 5: Solve for x
    x = 115,506,274,981.05/363,604.66
  6. Step 6: Final answer
    x = 317,669.95

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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.