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Finding the Fourth Proportional to 361,846.85, 499,276.64 and 218,614.82

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Solution

The fourth proportional to 361,846.85, 499,276.64 and 218,614.82 is: 301,644.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,846.85 : 499,276.64 = 218,614.82 : x
  2. Step 2: Convert to fraction form
    361,846.85/499,276.64 = 218,614.82/x
  3. Step 3: Cross multiply
    361,846.85x = 499,276.64 × 218,614.82
  4. Step 4: Simplify right side
    361,846.85x = 109,149,270,833.96
  5. Step 5: Solve for x
    x = 109,149,270,833.96/361,846.85
  6. Step 6: Final answer
    x = 301,644.94

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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.