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Finding the Fourth Proportional to 944.56, 1,417.20 and 482.46

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Solution

The fourth proportional to 944.56, 1,417.20 and 482.46 is: 723.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.56 : 1,417.20 = 482.46 : x
  2. Step 2: Convert to fraction form
    944.56/1,417.20 = 482.46/x
  3. Step 3: Cross multiply
    944.56x = 1,417.20 × 482.46
  4. Step 4: Simplify right side
    944.56x = 683,735.19
  5. Step 5: Solve for x
    x = 683,735.19/944.56
  6. Step 6: Final answer
    x = 723.87

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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.