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Finding the Fourth Proportional to 1,168.84, 1,613.10 and 703.24

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Solution

The fourth proportional to 1,168.84, 1,613.10 and 703.24 is: 970.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.84 : 1,613.10 = 703.24 : x
  2. Step 2: Convert to fraction form
    1,168.84/1,613.10 = 703.24/x
  3. Step 3: Cross multiply
    1,168.84x = 1,613.10 × 703.24
  4. Step 4: Simplify right side
    1,168.84x = 1,134,396.44
  5. Step 5: Solve for x
    x = 1,134,396.44/1,168.84
  6. Step 6: Final answer
    x = 970.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.