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Finding the Fourth Proportional to 1,155.37, 1,732.74 and 333.43

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Solution

The fourth proportional to 1,155.37, 1,732.74 and 333.43 is: 500.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.37 : 1,732.74 = 333.43 : x
  2. Step 2: Convert to fraction form
    1,155.37/1,732.74 = 333.43/x
  3. Step 3: Cross multiply
    1,155.37x = 1,732.74 × 333.43
  4. Step 4: Simplify right side
    1,155.37x = 577,747.50
  5. Step 5: Solve for x
    x = 577,747.50/1,155.37
  6. Step 6: Final answer
    x = 500.05

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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.