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Finding the Fourth Proportional to 479,626.64, 661,884.87 and 264,766.85

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Solution

The fourth proportional to 479,626.64, 661,884.87 and 264,766.85 is: 365,378.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,626.64 : 661,884.87 = 264,766.85 : x
  2. Step 2: Convert to fraction form
    479,626.64/661,884.87 = 264,766.85/x
  3. Step 3: Cross multiply
    479,626.64x = 661,884.87 × 264,766.85
  4. Step 4: Simplify right side
    479,626.64x = 175,245,172,092.56
  5. Step 5: Solve for x
    x = 175,245,172,092.56/479,626.64
  6. Step 6: Final answer
    x = 365,378.31

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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.