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Finding the Fourth Proportional to 1,062.06, 1,592.19 and 445.47

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Solution

The fourth proportional to 1,062.06, 1,592.19 and 445.47 is: 667.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.06 : 1,592.19 = 445.47 : x
  2. Step 2: Convert to fraction form
    1,062.06/1,592.19 = 445.47/x
  3. Step 3: Cross multiply
    1,062.06x = 1,592.19 × 445.47
  4. Step 4: Simplify right side
    1,062.06x = 709,272.88
  5. Step 5: Solve for x
    x = 709,272.88/1,062.06
  6. Step 6: Final answer
    x = 667.83

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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.