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Finding the Fourth Proportional to 1,568.72, 2,352.48 and 528.44

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Solution

The fourth proportional to 1,568.72, 2,352.48 and 528.44 is: 792.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.72 : 2,352.48 = 528.44 : x
  2. Step 2: Convert to fraction form
    1,568.72/2,352.48 = 528.44/x
  3. Step 3: Cross multiply
    1,568.72x = 2,352.48 × 528.44
  4. Step 4: Simplify right side
    1,568.72x = 1,243,144.53
  5. Step 5: Solve for x
    x = 1,243,144.53/1,568.72
  6. Step 6: Final answer
    x = 792.46

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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.