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Finding the Fourth Proportional to 1,131.26, 1,695.66 and 473.56

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Solution

The fourth proportional to 1,131.26, 1,695.66 and 473.56 is: 709.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131.26 : 1,695.66 = 473.56 : x
  2. Step 2: Convert to fraction form
    1,131.26/1,695.66 = 473.56/x
  3. Step 3: Cross multiply
    1,131.26x = 1,695.66 × 473.56
  4. Step 4: Simplify right side
    1,131.26x = 802,996.75
  5. Step 5: Solve for x
    x = 802,996.75/1,131.26
  6. Step 6: Final answer
    x = 709.83

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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.