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Finding the Fourth Proportional to 484.36, 668.04 and 353.32

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Solution

The fourth proportional to 484.36, 668.04 and 353.32 is: 487.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.36 : 668.04 = 353.32 : x
  2. Step 2: Convert to fraction form
    484.36/668.04 = 353.32/x
  3. Step 3: Cross multiply
    484.36x = 668.04 × 353.32
  4. Step 4: Simplify right side
    484.36x = 236,031.89
  5. Step 5: Solve for x
    x = 236,031.89/484.36
  6. Step 6: Final answer
    x = 487.31

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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.