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Finding the Fourth Proportional to 1,195.99, 1,791.58 and 545.83

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Solution

The fourth proportional to 1,195.99, 1,791.58 and 545.83 is: 817.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195.99 : 1,791.58 = 545.83 : x
  2. Step 2: Convert to fraction form
    1,195.99/1,791.58 = 545.83/x
  3. Step 3: Cross multiply
    1,195.99x = 1,791.58 × 545.83
  4. Step 4: Simplify right side
    1,195.99x = 977,898.11
  5. Step 5: Solve for x
    x = 977,898.11/1,195.99
  6. Step 6: Final answer
    x = 817.65

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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.