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Finding the Fourth Proportional to 1,174.90, 1,762.27 and 353.19

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Solution

The fourth proportional to 1,174.90, 1,762.27 and 353.19 is: 529.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.90 : 1,762.27 = 353.19 : x
  2. Step 2: Convert to fraction form
    1,174.90/1,762.27 = 353.19/x
  3. Step 3: Cross multiply
    1,174.90x = 1,762.27 × 353.19
  4. Step 4: Simplify right side
    1,174.90x = 622,416.14
  5. Step 5: Solve for x
    x = 622,416.14/1,174.90
  6. Step 6: Final answer
    x = 529.76

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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.