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Finding the Fourth Proportional to 941.14, 1,411.61 and 324.83

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Solution

The fourth proportional to 941.14, 1,411.61 and 324.83 is: 487.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.14 : 1,411.61 = 324.83 : x
  2. Step 2: Convert to fraction form
    941.14/1,411.61 = 324.83/x
  3. Step 3: Cross multiply
    941.14x = 1,411.61 × 324.83
  4. Step 4: Simplify right side
    941.14x = 458,533.28
  5. Step 5: Solve for x
    x = 458,533.28/941.14
  6. Step 6: Final answer
    x = 487.21

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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.