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Finding the Fourth Proportional to 1,192.37, 1,789.00 and 499.50

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Solution

The fourth proportional to 1,192.37, 1,789.00 and 499.50 is: 749.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.37 : 1,789.00 = 499.50 : x
  2. Step 2: Convert to fraction form
    1,192.37/1,789.00 = 499.50/x
  3. Step 3: Cross multiply
    1,192.37x = 1,789.00 × 499.50
  4. Step 4: Simplify right side
    1,192.37x = 893,604.25
  5. Step 5: Solve for x
    x = 893,604.25/1,192.37
  6. Step 6: Final answer
    x = 749.44

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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.