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Finding the Fourth Proportional to 1,568.64, 2,351.52 and 798.24

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Solution

The fourth proportional to 1,568.64, 2,351.52 and 798.24 is: 1,196.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.64 : 2,351.52 = 798.24 : x
  2. Step 2: Convert to fraction form
    1,568.64/2,351.52 = 798.24/x
  3. Step 3: Cross multiply
    1,568.64x = 2,351.52 × 798.24
  4. Step 4: Simplify right side
    1,568.64x = 1,877,077.32
  5. Step 5: Solve for x
    x = 1,877,077.32/1,568.64
  6. Step 6: Final answer
    x = 1,196.63

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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.