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Finding the Fourth Proportional to 350.90, 484.16 and 210.98

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Solution

The fourth proportional to 350.90, 484.16 and 210.98 is: 291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.90 : 484.16 = 210.98 : x
  2. Step 2: Convert to fraction form
    350.90/484.16 = 210.98/x
  3. Step 3: Cross multiply
    350.90x = 484.16 × 210.98
  4. Step 4: Simplify right side
    350.90x = 102,148.08
  5. Step 5: Solve for x
    x = 102,148.08/350.90
  6. Step 6: Final answer
    x = 291.10

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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.