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Finding the Fourth Proportional to 1,062.90, 1,593.26 and 574.92

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Solution

The fourth proportional to 1,062.90, 1,593.26 and 574.92 is: 861.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.90 : 1,593.26 = 574.92 : x
  2. Step 2: Convert to fraction form
    1,062.90/1,593.26 = 574.92/x
  3. Step 3: Cross multiply
    1,062.90x = 1,593.26 × 574.92
  4. Step 4: Simplify right side
    1,062.90x = 915,994.16
  5. Step 5: Solve for x
    x = 915,994.16/1,062.90
  6. Step 6: Final answer
    x = 861.79

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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.