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Finding the Fourth Proportional to 1,184.00, 1,633.37 and 785.75

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Solution

The fourth proportional to 1,184.00, 1,633.37 and 785.75 is: 1,083.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.00 : 1,633.37 = 785.75 : x
  2. Step 2: Convert to fraction form
    1,184.00/1,633.37 = 785.75/x
  3. Step 3: Cross multiply
    1,184.00x = 1,633.37 × 785.75
  4. Step 4: Simplify right side
    1,184.00x = 1,283,408.38
  5. Step 5: Solve for x
    x = 1,283,408.38/1,184.00
  6. Step 6: Final answer
    x = 1,083.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.