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Finding the Fourth Proportional to 944.02, 1,302.75 and 551.27

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Solution

The fourth proportional to 944.02, 1,302.75 and 551.27 is: 760.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.02 : 1,302.75 = 551.27 : x
  2. Step 2: Convert to fraction form
    944.02/1,302.75 = 551.27/x
  3. Step 3: Cross multiply
    944.02x = 1,302.75 × 551.27
  4. Step 4: Simplify right side
    944.02x = 718,166.99
  5. Step 5: Solve for x
    x = 718,166.99/944.02
  6. Step 6: Final answer
    x = 760.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.