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Finding the Fourth Proportional to 944.88, 1,304.28 and 552.12

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Solution

The fourth proportional to 944.88, 1,304.28 and 552.12 is: 762.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.88 : 1,304.28 = 552.12 : x
  2. Step 2: Convert to fraction form
    944.88/1,304.28 = 552.12/x
  3. Step 3: Cross multiply
    944.88x = 1,304.28 × 552.12
  4. Step 4: Simplify right side
    944.88x = 720,119.07
  5. Step 5: Solve for x
    x = 720,119.07/944.88
  6. Step 6: Final answer
    x = 762.13

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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.