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Finding the Fourth Proportional to 366,930.81, 505,895.76 and 237,640.86

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Solution

The fourth proportional to 366,930.81, 505,895.76 and 237,640.86 is: 327,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,930.81 : 505,895.76 = 237,640.86 : x
  2. Step 2: Convert to fraction form
    366,930.81/505,895.76 = 237,640.86/x
  3. Step 3: Cross multiply
    366,930.81x = 505,895.76 × 237,640.86
  4. Step 4: Simplify right side
    366,930.81x = 120,221,503,476.75
  5. Step 5: Solve for x
    x = 120,221,503,476.75/366,930.81
  6. Step 6: Final answer
    x = 327,640.80

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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.