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Finding the Fourth Proportional to 479,593.41, 661,847.03 and 261,813.32

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Solution

The fourth proportional to 479,593.41, 661,847.03 and 261,813.32 is: 361,306.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,593.41 : 661,847.03 = 261,813.32 : x
  2. Step 2: Convert to fraction form
    479,593.41/661,847.03 = 261,813.32/x
  3. Step 3: Cross multiply
    479,593.41x = 661,847.03 × 261,813.32
  4. Step 4: Simplify right side
    479,593.41x = 173,280,368,256.44
  5. Step 5: Solve for x
    x = 173,280,368,256.44/479,593.41
  6. Step 6: Final answer
    x = 361,306.82

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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.