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Finding the Fourth Proportional to 750,494.62, 1,035,662.52 and 428,198.86

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Solution

The fourth proportional to 750,494.62, 1,035,662.52 and 428,198.86 is: 590,902.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,494.62 : 1,035,662.52 = 428,198.86 : x
  2. Step 2: Convert to fraction form
    750,494.62/1,035,662.52 = 428,198.86/x
  3. Step 3: Cross multiply
    750,494.62x = 1,035,662.52 × 428,198.86
  4. Step 4: Simplify right side
    750,494.62x = 443,469,510,408.73
  5. Step 5: Solve for x
    x = 443,469,510,408.73/750,494.62
  6. Step 6: Final answer
    x = 590,902.98

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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.