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Finding the Fourth Proportional to 1,174.64, 1,762.02 and 353.03

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Solution

The fourth proportional to 1,174.64, 1,762.02 and 353.03 is: 529.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.64 : 1,762.02 = 353.03 : x
  2. Step 2: Convert to fraction form
    1,174.64/1,762.02 = 353.03/x
  3. Step 3: Cross multiply
    1,174.64x = 1,762.02 × 353.03
  4. Step 4: Simplify right side
    1,174.64x = 622,037.11
  5. Step 5: Solve for x
    x = 622,037.11/1,174.64
  6. Step 6: Final answer
    x = 529.56

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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.