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Finding the Fourth Proportional to 941.13, 1,410.74 and 453.92

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Solution

The fourth proportional to 941.13, 1,410.74 and 453.92 is: 680.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.13 : 1,410.74 = 453.92 : x
  2. Step 2: Convert to fraction form
    941.13/1,410.74 = 453.92/x
  3. Step 3: Cross multiply
    941.13x = 1,410.74 × 453.92
  4. Step 4: Simplify right side
    941.13x = 640,363.10
  5. Step 5: Solve for x
    x = 640,363.10/941.13
  6. Step 6: Final answer
    x = 680.42

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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.