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Finding the Fourth Proportional to 1,132.16, 1,696.32 and 698.44

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Solution

The fourth proportional to 1,132.16, 1,696.32 and 698.44 is: 1,046.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.16 : 1,696.32 = 698.44 : x
  2. Step 2: Convert to fraction form
    1,132.16/1,696.32 = 698.44/x
  3. Step 3: Cross multiply
    1,132.16x = 1,696.32 × 698.44
  4. Step 4: Simplify right side
    1,132.16x = 1,184,777.74
  5. Step 5: Solve for x
    x = 1,184,777.74/1,132.16
  6. Step 6: Final answer
    x = 1,046.48

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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.