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Finding the Fourth Proportional to 422,249.69, 582,708.67 and 252,483.81

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Solution

The fourth proportional to 422,249.69, 582,708.67 and 252,483.81 is: 348,430.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,249.69 : 582,708.67 = 252,483.81 : x
  2. Step 2: Convert to fraction form
    422,249.69/582,708.67 = 252,483.81/x
  3. Step 3: Cross multiply
    422,249.69x = 582,708.67 × 252,483.81
  4. Step 4: Simplify right side
    422,249.69x = 147,124,505,121.63
  5. Step 5: Solve for x
    x = 147,124,505,121.63/422,249.69
  6. Step 6: Final answer
    x = 348,430.11

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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.