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Finding the Fourth Proportional to 941.51, 1,410.44 and 724.02

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Solution

The fourth proportional to 941.51, 1,410.44 and 724.02 is: 1,084.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.51 : 1,410.44 = 724.02 : x
  2. Step 2: Convert to fraction form
    941.51/1,410.44 = 724.02/x
  3. Step 3: Cross multiply
    941.51x = 1,410.44 × 724.02
  4. Step 4: Simplify right side
    941.51x = 1,021,183.15
  5. Step 5: Solve for x
    x = 1,021,183.15/941.51
  6. Step 6: Final answer
    x = 1,084.63

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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.