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Finding the Fourth Proportional to 1,104.75, 1,524.66 and 632.68

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Solution

The fourth proportional to 1,104.75, 1,524.66 and 632.68 is: 873.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104.75 : 1,524.66 = 632.68 : x
  2. Step 2: Convert to fraction form
    1,104.75/1,524.66 = 632.68/x
  3. Step 3: Cross multiply
    1,104.75x = 1,524.66 × 632.68
  4. Step 4: Simplify right side
    1,104.75x = 964,621.42
  5. Step 5: Solve for x
    x = 964,621.42/1,104.75
  6. Step 6: Final answer
    x = 873.16

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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.