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Finding the Fourth Proportional to 1,168.26, 1,751.88 and 437.32

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Solution

The fourth proportional to 1,168.26, 1,751.88 and 437.32 is: 655.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.26 : 1,751.88 = 437.32 : x
  2. Step 2: Convert to fraction form
    1,168.26/1,751.88 = 437.32/x
  3. Step 3: Cross multiply
    1,168.26x = 1,751.88 × 437.32
  4. Step 4: Simplify right side
    1,168.26x = 766,134.76
  5. Step 5: Solve for x
    x = 766,134.76/1,168.26
  6. Step 6: Final answer
    x = 655.79

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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.