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Finding the Fourth Proportional to 1,350, 2,025.24 and 472.44

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Solution

The fourth proportional to 1,350, 2,025.24 and 472.44 is: 708.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350 : 2,025.24 = 472.44 : x
  2. Step 2: Convert to fraction form
    1,350/2,025.24 = 472.44/x
  3. Step 3: Cross multiply
    1,350x = 2,025.24 × 472.44
  4. Step 4: Simplify right side
    1,350x = 956,804.39
  5. Step 5: Solve for x
    x = 956,804.39/1,350
  6. Step 6: Final answer
    x = 708.74

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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.