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Finding the Fourth Proportional to 1,132.44, 1,698.36 and 310.52

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Solution

The fourth proportional to 1,132.44, 1,698.36 and 310.52 is: 465.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.44 : 1,698.36 = 310.52 : x
  2. Step 2: Convert to fraction form
    1,132.44/1,698.36 = 310.52/x
  3. Step 3: Cross multiply
    1,132.44x = 1,698.36 × 310.52
  4. Step 4: Simplify right side
    1,132.44x = 527,365.09
  5. Step 5: Solve for x
    x = 527,365.09/1,132.44
  6. Step 6: Final answer
    x = 465.69

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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.