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Finding the Fourth Proportional to 434.36, 650.94 and 203

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Solution

The fourth proportional to 434.36, 650.94 and 203 is: 304.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.36 : 650.94 = 203 : x
  2. Step 2: Convert to fraction form
    434.36/650.94 = 203/x
  3. Step 3: Cross multiply
    434.36x = 650.94 × 203
  4. Step 4: Simplify right side
    434.36x = 132,140.82
  5. Step 5: Solve for x
    x = 132,140.82/434.36
  6. Step 6: Final answer
    x = 304.22

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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.