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Finding the Fourth Proportional to 592,379.92, 816,634.03 and 422,318.80

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Solution

The fourth proportional to 592,379.92, 816,634.03 and 422,318.80 is: 582,193.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,379.92 : 816,634.03 = 422,318.80 : x
  2. Step 2: Convert to fraction form
    592,379.92/816,634.03 = 422,318.80/x
  3. Step 3: Cross multiply
    592,379.92x = 816,634.03 × 422,318.80
  4. Step 4: Simplify right side
    592,379.92x = 344,879,903,588.76
  5. Step 5: Solve for x
    x = 344,879,903,588.76/592,379.92
  6. Step 6: Final answer
    x = 582,193.78

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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.