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Finding the Fourth Proportional to 1,862.82, 2,794.19 and 564.30

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Solution

The fourth proportional to 1,862.82, 2,794.19 and 564.30 is: 846.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.82 : 2,794.19 = 564.30 : x
  2. Step 2: Convert to fraction form
    1,862.82/2,794.19 = 564.30/x
  3. Step 3: Cross multiply
    1,862.82x = 2,794.19 × 564.30
  4. Step 4: Simplify right side
    1,862.82x = 1,576,758.60
  5. Step 5: Solve for x
    x = 1,576,758.60/1,862.82
  6. Step 6: Final answer
    x = 846.44

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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.