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Finding the Fourth Proportional to 1,467.84, 2,200.22 and 542.81

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Solution

The fourth proportional to 1,467.84, 2,200.22 and 542.81 is: 813.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,467.84 : 2,200.22 = 542.81 : x
  2. Step 2: Convert to fraction form
    1,467.84/2,200.22 = 542.81/x
  3. Step 3: Cross multiply
    1,467.84x = 2,200.22 × 542.81
  4. Step 4: Simplify right side
    1,467.84x = 1,194,287.70
  5. Step 5: Solve for x
    x = 1,194,287.70/1,467.84
  6. Step 6: Final answer
    x = 813.64

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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.