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Finding the Fourth Proportional to 503.01, 694.50 and 328.65

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Solution

The fourth proportional to 503.01, 694.50 and 328.65 is: 453.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.01 : 694.50 = 328.65 : x
  2. Step 2: Convert to fraction form
    503.01/694.50 = 328.65/x
  3. Step 3: Cross multiply
    503.01x = 694.50 × 328.65
  4. Step 4: Simplify right side
    503.01x = 228,247.43
  5. Step 5: Solve for x
    x = 228,247.43/503.01
  6. Step 6: Final answer
    x = 453.76

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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.