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Finding the Fourth Proportional to 1,467.76, 2,201.80 and 493.96

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Solution

The fourth proportional to 1,467.76, 2,201.80 and 493.96 is: 740.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,467.76 : 2,201.80 = 493.96 : x
  2. Step 2: Convert to fraction form
    1,467.76/2,201.80 = 493.96/x
  3. Step 3: Cross multiply
    1,467.76x = 2,201.80 × 493.96
  4. Step 4: Simplify right side
    1,467.76x = 1,087,601.13
  5. Step 5: Solve for x
    x = 1,087,601.13/1,467.76
  6. Step 6: Final answer
    x = 740.99

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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.