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Finding the Fourth Proportional to 1,141.92, 1,713.60 and 593.28

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Solution

The fourth proportional to 1,141.92, 1,713.60 and 593.28 is: 890.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,141.92 : 1,713.60 = 593.28 : x
  2. Step 2: Convert to fraction form
    1,141.92/1,713.60 = 593.28/x
  3. Step 3: Cross multiply
    1,141.92x = 1,713.60 × 593.28
  4. Step 4: Simplify right side
    1,141.92x = 1,016,644.61
  5. Step 5: Solve for x
    x = 1,016,644.61/1,141.92
  6. Step 6: Final answer
    x = 890.29

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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.