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Finding the Fourth Proportional to 427,879.87, 590,605.43 and 246,712.43

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Solution

The fourth proportional to 427,879.87, 590,605.43 and 246,712.43 is: 340,538.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,879.87 : 590,605.43 = 246,712.43 : x
  2. Step 2: Convert to fraction form
    427,879.87/590,605.43 = 246,712.43/x
  3. Step 3: Cross multiply
    427,879.87x = 590,605.43 × 246,712.43
  4. Step 4: Simplify right side
    427,879.87x = 145,709,701,049.45
  5. Step 5: Solve for x
    x = 145,709,701,049.45/427,879.87
  6. Step 6: Final answer
    x = 340,538.81

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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.