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Finding the Fourth Proportional to 626, 938.37 and 260.99

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Solution

The fourth proportional to 626, 938.37 and 260.99 is: 391.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    626 : 938.37 = 260.99 : x
  2. Step 2: Convert to fraction form
    626/938.37 = 260.99/x
  3. Step 3: Cross multiply
    626x = 938.37 × 260.99
  4. Step 4: Simplify right side
    626x = 244,905.19
  5. Step 5: Solve for x
    x = 244,905.19/626
  6. Step 6: Final answer
    x = 391.22

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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.