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Finding the Fourth Proportional to 1,196, 1,794.72 and 512

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Solution

The fourth proportional to 1,196, 1,794.72 and 512 is: 768.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196 : 1,794.72 = 512 : x
  2. Step 2: Convert to fraction form
    1,196/1,794.72 = 512/x
  3. Step 3: Cross multiply
    1,196x = 1,794.72 × 512
  4. Step 4: Simplify right side
    1,196x = 918,896.64
  5. Step 5: Solve for x
    x = 918,896.64/1,196
  6. Step 6: Final answer
    x = 768.31

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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.