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Finding the Fourth Proportional to 363,839.72, 545,094.55 and 263,751.66

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Solution

The fourth proportional to 363,839.72, 545,094.55 and 263,751.66 is: 395,145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,839.72 : 545,094.55 = 263,751.66 : x
  2. Step 2: Convert to fraction form
    363,839.72/545,094.55 = 263,751.66/x
  3. Step 3: Cross multiply
    363,839.72x = 545,094.55 × 263,751.66
  4. Step 4: Simplify right side
    363,839.72x = 143,769,591,100.70
  5. Step 5: Solve for x
    x = 143,769,591,100.70/363,839.72
  6. Step 6: Final answer
    x = 395,145.40

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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.