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Finding the Fourth Proportional to 595,149.44, 892,728.80 and 221,172

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Solution

The fourth proportional to 595,149.44, 892,728.80 and 221,172 is: 331,759.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,149.44 : 892,728.80 = 221,172 : x
  2. Step 2: Convert to fraction form
    595,149.44/892,728.80 = 221,172/x
  3. Step 3: Cross multiply
    595,149.44x = 892,728.80 × 221,172
  4. Step 4: Simplify right side
    595,149.44x = 197,446,614,153.60
  5. Step 5: Solve for x
    x = 197,446,614,153.60/595,149.44
  6. Step 6: Final answer
    x = 331,759.72

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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.