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Finding the Fourth Proportional to 943.44, 1,414.41 and 358.08

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Solution

The fourth proportional to 943.44, 1,414.41 and 358.08 is: 536.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    943.44 : 1,414.41 = 358.08 : x
  2. Step 2: Convert to fraction form
    943.44/1,414.41 = 358.08/x
  3. Step 3: Cross multiply
    943.44x = 1,414.41 × 358.08
  4. Step 4: Simplify right side
    943.44x = 506,471.93
  5. Step 5: Solve for x
    x = 506,471.93/943.44
  6. Step 6: Final answer
    x = 536.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.