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Finding the Fourth Proportional to 1,132.23, 1,699.03 and 516.22

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Solution

The fourth proportional to 1,132.23, 1,699.03 and 516.22 is: 774.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.23 : 1,699.03 = 516.22 : x
  2. Step 2: Convert to fraction form
    1,132.23/1,699.03 = 516.22/x
  3. Step 3: Cross multiply
    1,132.23x = 1,699.03 × 516.22
  4. Step 4: Simplify right side
    1,132.23x = 877,076.32
  5. Step 5: Solve for x
    x = 877,076.32/1,132.23
  6. Step 6: Final answer
    x = 774.65

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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.