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Finding the Fourth Proportional to 966.42, 1,449.76 and 349.96

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Solution

The fourth proportional to 966.42, 1,449.76 and 349.96 is: 524.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.42 : 1,449.76 = 349.96 : x
  2. Step 2: Convert to fraction form
    966.42/1,449.76 = 349.96/x
  3. Step 3: Cross multiply
    966.42x = 1,449.76 × 349.96
  4. Step 4: Simplify right side
    966.42x = 507,358.01
  5. Step 5: Solve for x
    x = 507,358.01/966.42
  6. Step 6: Final answer
    x = 524.99

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.