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Finding the Fourth Proportional to 623.56, 934.70 and 299.16

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Solution

The fourth proportional to 623.56, 934.70 and 299.16 is: 448.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.56 : 934.70 = 299.16 : x
  2. Step 2: Convert to fraction form
    623.56/934.70 = 299.16/x
  3. Step 3: Cross multiply
    623.56x = 934.70 × 299.16
  4. Step 4: Simplify right side
    623.56x = 279,624.85
  5. Step 5: Solve for x
    x = 279,624.85/623.56
  6. Step 6: Final answer
    x = 448.43

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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.