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Finding the Fourth Proportional to 734.24, 1,093.44 and 708.64

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Solution

The fourth proportional to 734.24, 1,093.44 and 708.64 is: 1,055.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    734.24 : 1,093.44 = 708.64 : x
  2. Step 2: Convert to fraction form
    734.24/1,093.44 = 708.64/x
  3. Step 3: Cross multiply
    734.24x = 1,093.44 × 708.64
  4. Step 4: Simplify right side
    734.24x = 774,855.32
  5. Step 5: Solve for x
    x = 774,855.32/734.24
  6. Step 6: Final answer
    x = 1,055.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.