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Finding the Fourth Proportional to 2,228.79, 3,343.29 and 585.48

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Solution

The fourth proportional to 2,228.79, 3,343.29 and 585.48 is: 878.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.79 : 3,343.29 = 585.48 : x
  2. Step 2: Convert to fraction form
    2,228.79/3,343.29 = 585.48/x
  3. Step 3: Cross multiply
    2,228.79x = 3,343.29 × 585.48
  4. Step 4: Simplify right side
    2,228.79x = 1,957,429.43
  5. Step 5: Solve for x
    x = 1,957,429.43/2,228.79
  6. Step 6: Final answer
    x = 878.25

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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.