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Finding the Fourth Proportional to 349.04, 520.61 and 294.56

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Solution

The fourth proportional to 349.04, 520.61 and 294.56 is: 439.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.04 : 520.61 = 294.56 : x
  2. Step 2: Convert to fraction form
    349.04/520.61 = 294.56/x
  3. Step 3: Cross multiply
    349.04x = 520.61 × 294.56
  4. Step 4: Simplify right side
    349.04x = 153,350.88
  5. Step 5: Solve for x
    x = 153,350.88/349.04
  6. Step 6: Final answer
    x = 439.35

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.