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Finding the Fourth Proportional to 1,136.46, 1,568.37 and 632.37

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Solution

The fourth proportional to 1,136.46, 1,568.37 and 632.37 is: 872.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.46 : 1,568.37 = 632.37 : x
  2. Step 2: Convert to fraction form
    1,136.46/1,568.37 = 632.37/x
  3. Step 3: Cross multiply
    1,136.46x = 1,568.37 × 632.37
  4. Step 4: Simplify right side
    1,136.46x = 991,790.14
  5. Step 5: Solve for x
    x = 991,790.14/1,136.46
  6. Step 6: Final answer
    x = 872.70

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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.