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Finding the Fourth Proportional to 1,208.53, 1,808.39 and 1,032.96

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Solution

The fourth proportional to 1,208.53, 1,808.39 and 1,032.96 is: 1,545.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208.53 : 1,808.39 = 1,032.96 : x
  2. Step 2: Convert to fraction form
    1,208.53/1,808.39 = 1,032.96/x
  3. Step 3: Cross multiply
    1,208.53x = 1,808.39 × 1,032.96
  4. Step 4: Simplify right side
    1,208.53x = 1,868,003.90
  5. Step 5: Solve for x
    x = 1,868,003.90/1,208.53
  6. Step 6: Final answer
    x = 1,545.68

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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.