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Finding the Fourth Proportional to 1,115.76, 1,673.70 and 466.52

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Solution

The fourth proportional to 1,115.76, 1,673.70 and 466.52 is: 699.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115.76 : 1,673.70 = 466.52 : x
  2. Step 2: Convert to fraction form
    1,115.76/1,673.70 = 466.52/x
  3. Step 3: Cross multiply
    1,115.76x = 1,673.70 × 466.52
  4. Step 4: Simplify right side
    1,115.76x = 780,814.52
  5. Step 5: Solve for x
    x = 780,814.52/1,115.76
  6. Step 6: Final answer
    x = 699.81

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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.