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Finding the Fourth Proportional to 944.76, 1,417.20 and 367.56

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Solution

The fourth proportional to 944.76, 1,417.20 and 367.56 is: 551.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.76 : 1,417.20 = 367.56 : x
  2. Step 2: Convert to fraction form
    944.76/1,417.20 = 367.56/x
  3. Step 3: Cross multiply
    944.76x = 1,417.20 × 367.56
  4. Step 4: Simplify right side
    944.76x = 520,906.03
  5. Step 5: Solve for x
    x = 520,906.03/944.76
  6. Step 6: Final answer
    x = 551.36

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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.