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Finding the Fourth Proportional to 1,214.37, 1,675.40 and 794.96

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Solution

The fourth proportional to 1,214.37, 1,675.40 and 794.96 is: 1,096.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214.37 : 1,675.40 = 794.96 : x
  2. Step 2: Convert to fraction form
    1,214.37/1,675.40 = 794.96/x
  3. Step 3: Cross multiply
    1,214.37x = 1,675.40 × 794.96
  4. Step 4: Simplify right side
    1,214.37x = 1,331,875.98
  5. Step 5: Solve for x
    x = 1,331,875.98/1,214.37
  6. Step 6: Final answer
    x = 1,096.76

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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.