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Finding the Fourth Proportional to 1,194, 1,791.72 and 510

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Solution

The fourth proportional to 1,194, 1,791.72 and 510 is: 765.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194 : 1,791.72 = 510 : x
  2. Step 2: Convert to fraction form
    1,194/1,791.72 = 510/x
  3. Step 3: Cross multiply
    1,194x = 1,791.72 × 510
  4. Step 4: Simplify right side
    1,194x = 913,777.20
  5. Step 5: Solve for x
    x = 913,777.20/1,194
  6. Step 6: Final answer
    x = 765.31

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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.