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Finding the Fourth Proportional to 504,778.73, 757,004.20 and 167,728.86

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Solution

The fourth proportional to 504,778.73, 757,004.20 and 167,728.86 is: 251,538.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,778.73 : 757,004.20 = 167,728.86 : x
  2. Step 2: Convert to fraction form
    504,778.73/757,004.20 = 167,728.86/x
  3. Step 3: Cross multiply
    504,778.73x = 757,004.20 × 167,728.86
  4. Step 4: Simplify right side
    504,778.73x = 126,971,451,061.89
  5. Step 5: Solve for x
    x = 126,971,451,061.89/504,778.73
  6. Step 6: Final answer
    x = 251,538.83

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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.