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Finding the Fourth Proportional to 944.02, 1,415.42 and 482.02

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Solution

The fourth proportional to 944.02, 1,415.42 and 482.02 is: 722.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.02 : 1,415.42 = 482.02 : x
  2. Step 2: Convert to fraction form
    944.02/1,415.42 = 482.02/x
  3. Step 3: Cross multiply
    944.02x = 1,415.42 × 482.02
  4. Step 4: Simplify right side
    944.02x = 682,260.75
  5. Step 5: Solve for x
    x = 682,260.75/944.02
  6. Step 6: Final answer
    x = 722.72

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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.