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Finding the Fourth Proportional to 1,789.00, 2,683.95 and 556.42

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Solution

The fourth proportional to 1,789.00, 2,683.95 and 556.42 is: 834.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.00 : 2,683.95 = 556.42 : x
  2. Step 2: Convert to fraction form
    1,789.00/2,683.95 = 556.42/x
  3. Step 3: Cross multiply
    1,789.00x = 2,683.95 × 556.42
  4. Step 4: Simplify right side
    1,789.00x = 1,493,398.49
  5. Step 5: Solve for x
    x = 1,493,398.49/1,789.00
  6. Step 6: Final answer
    x = 834.77

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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.