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Finding the Fourth Proportional to 1,168.93, 1,613.47 and 750.41

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Solution

The fourth proportional to 1,168.93, 1,613.47 and 750.41 is: 1,035.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.93 : 1,613.47 = 750.41 : x
  2. Step 2: Convert to fraction form
    1,168.93/1,613.47 = 750.41/x
  3. Step 3: Cross multiply
    1,168.93x = 1,613.47 × 750.41
  4. Step 4: Simplify right side
    1,168.93x = 1,210,770.61
  5. Step 5: Solve for x
    x = 1,210,770.61/1,168.93
  6. Step 6: Final answer
    x = 1,035.79

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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.