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Finding the Fourth Proportional to 1,358.14, 2,035.94 and 492.24

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Solution

The fourth proportional to 1,358.14, 2,035.94 and 492.24 is: 737.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.14 : 2,035.94 = 492.24 : x
  2. Step 2: Convert to fraction form
    1,358.14/2,035.94 = 492.24/x
  3. Step 3: Cross multiply
    1,358.14x = 2,035.94 × 492.24
  4. Step 4: Simplify right side
    1,358.14x = 1,002,171.11
  5. Step 5: Solve for x
    x = 1,002,171.11/1,358.14
  6. Step 6: Final answer
    x = 737.90

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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.