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Finding the Fourth Proportional to 1,452.53, 2,178.96 and 528.53

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Solution

The fourth proportional to 1,452.53, 2,178.96 and 528.53 is: 792.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.53 : 2,178.96 = 528.53 : x
  2. Step 2: Convert to fraction form
    1,452.53/2,178.96 = 528.53/x
  3. Step 3: Cross multiply
    1,452.53x = 2,178.96 × 528.53
  4. Step 4: Simplify right side
    1,452.53x = 1,151,634.83
  5. Step 5: Solve for x
    x = 1,151,634.83/1,452.53
  6. Step 6: Final answer
    x = 792.85

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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.