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Finding the Fourth Proportional to 555,884.72, 834,942.96 and 331,682.72

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Solution

The fourth proportional to 555,884.72, 834,942.96 and 331,682.72 is: 498,189.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,884.72 : 834,942.96 = 331,682.72 : x
  2. Step 2: Convert to fraction form
    555,884.72/834,942.96 = 331,682.72/x
  3. Step 3: Cross multiply
    555,884.72x = 834,942.96 × 331,682.72
  4. Step 4: Simplify right side
    555,884.72x = 276,936,152,017.65
  5. Step 5: Solve for x
    x = 276,936,152,017.65/555,884.72
  6. Step 6: Final answer
    x = 498,189.90

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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.