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Finding the Fourth Proportional to 335,961.20, 503,358.60 and 217,571.60

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Solution

The fourth proportional to 335,961.20, 503,358.60 and 217,571.60 is: 325,979.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,961.20 : 503,358.60 = 217,571.60 : x
  2. Step 2: Convert to fraction form
    335,961.20/503,358.60 = 217,571.60/x
  3. Step 3: Cross multiply
    335,961.20x = 503,358.60 × 217,571.60
  4. Step 4: Simplify right side
    335,961.20x = 109,516,535,975.76
  5. Step 5: Solve for x
    x = 109,516,535,975.76/335,961.20
  6. Step 6: Final answer
    x = 325,979.71

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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.