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Finding the Fourth Proportional to 1,568.88, 2,353.20 and 529.38

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Solution

The fourth proportional to 1,568.88, 2,353.20 and 529.38 is: 794.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.88 : 2,353.20 = 529.38 : x
  2. Step 2: Convert to fraction form
    1,568.88/2,353.20 = 529.38/x
  3. Step 3: Cross multiply
    1,568.88x = 2,353.20 × 529.38
  4. Step 4: Simplify right side
    1,568.88x = 1,245,737.02
  5. Step 5: Solve for x
    x = 1,245,737.02/1,568.88
  6. Step 6: Final answer
    x = 794.03

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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.