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Finding the Fourth Proportional to 1,365.24, 2,048.37 and 708.54

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Solution

The fourth proportional to 1,365.24, 2,048.37 and 708.54 is: 1,063.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365.24 : 2,048.37 = 708.54 : x
  2. Step 2: Convert to fraction form
    1,365.24/2,048.37 = 708.54/x
  3. Step 3: Cross multiply
    1,365.24x = 2,048.37 × 708.54
  4. Step 4: Simplify right side
    1,365.24x = 1,451,352.08
  5. Step 5: Solve for x
    x = 1,451,352.08/1,365.24
  6. Step 6: Final answer
    x = 1,063.07

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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.