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Finding the Fourth Proportional to 633,079.62, 873,647.52 and 361,147.02

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Solution

The fourth proportional to 633,079.62, 873,647.52 and 361,147.02 is: 498,381.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,079.62 : 873,647.52 = 361,147.02 : x
  2. Step 2: Convert to fraction form
    633,079.62/873,647.52 = 361,147.02/x
  3. Step 3: Cross multiply
    633,079.62x = 873,647.52 × 361,147.02
  4. Step 4: Simplify right side
    633,079.62x = 315,515,198,378.39
  5. Step 5: Solve for x
    x = 315,515,198,378.39/633,079.62
  6. Step 6: Final answer
    x = 498,381.54

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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.