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Finding the Fourth Proportional to 1,491.42, 2,236.59 and 567.23

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Solution

The fourth proportional to 1,491.42, 2,236.59 and 567.23 is: 850.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.42 : 2,236.59 = 567.23 : x
  2. Step 2: Convert to fraction form
    1,491.42/2,236.59 = 567.23/x
  3. Step 3: Cross multiply
    1,491.42x = 2,236.59 × 567.23
  4. Step 4: Simplify right side
    1,491.42x = 1,268,649.76
  5. Step 5: Solve for x
    x = 1,268,649.76/1,491.42
  6. Step 6: Final answer
    x = 850.63

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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.