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Finding the Fourth Proportional to 422,257.86, 582,622.22 and 250,089.93

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Solution

The fourth proportional to 422,257.86, 582,622.22 and 250,089.93 is: 345,068.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,257.86 : 582,622.22 = 250,089.93 : x
  2. Step 2: Convert to fraction form
    422,257.86/582,622.22 = 250,089.93/x
  3. Step 3: Cross multiply
    422,257.86x = 582,622.22 × 250,089.93
  4. Step 4: Simplify right side
    422,257.86x = 145,707,948,965.80
  5. Step 5: Solve for x
    x = 145,707,948,965.80/422,257.86
  6. Step 6: Final answer
    x = 345,068.65

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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.