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Finding the Fourth Proportional to 606.16, 836.04 and 399.44

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Solution

The fourth proportional to 606.16, 836.04 and 399.44 is: 550.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.16 : 836.04 = 399.44 : x
  2. Step 2: Convert to fraction form
    606.16/836.04 = 399.44/x
  3. Step 3: Cross multiply
    606.16x = 836.04 × 399.44
  4. Step 4: Simplify right side
    606.16x = 333,947.82
  5. Step 5: Solve for x
    x = 333,947.82/606.16
  6. Step 6: Final answer
    x = 550.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.