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Finding the Fourth Proportional to 1,174.75, 1,762.12 and 353.02

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Solution

The fourth proportional to 1,174.75, 1,762.12 and 353.02 is: 529.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.75 : 1,762.12 = 353.02 : x
  2. Step 2: Convert to fraction form
    1,174.75/1,762.12 = 353.02/x
  3. Step 3: Cross multiply
    1,174.75x = 1,762.12 × 353.02
  4. Step 4: Simplify right side
    1,174.75x = 622,054.79
  5. Step 5: Solve for x
    x = 622,054.79/1,174.75
  6. Step 6: Final answer
    x = 529.52

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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.