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Finding the Fourth Proportional to 1,360.54, 2,040.94 and 482.96

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Solution

The fourth proportional to 1,360.54, 2,040.94 and 482.96 is: 724.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.54 : 2,040.94 = 482.96 : x
  2. Step 2: Convert to fraction form
    1,360.54/2,040.94 = 482.96/x
  3. Step 3: Cross multiply
    1,360.54x = 2,040.94 × 482.96
  4. Step 4: Simplify right side
    1,360.54x = 985,682.18
  5. Step 5: Solve for x
    x = 985,682.18/1,360.54
  6. Step 6: Final answer
    x = 724.48

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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.