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Finding the Fourth Proportional to 1,174.80, 1,762.28 and 353.14

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Solution

The fourth proportional to 1,174.80, 1,762.28 and 353.14 is: 529.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.80 : 1,762.28 = 353.14 : x
  2. Step 2: Convert to fraction form
    1,174.80/1,762.28 = 353.14/x
  3. Step 3: Cross multiply
    1,174.80x = 1,762.28 × 353.14
  4. Step 4: Simplify right side
    1,174.80x = 622,323.63
  5. Step 5: Solve for x
    x = 622,323.63/1,174.80
  6. Step 6: Final answer
    x = 529.73

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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.