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Finding the Fourth Proportional to 1,192.46, 1,788.51 and 534.20

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Solution

The fourth proportional to 1,192.46, 1,788.51 and 534.20 is: 801.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.46 : 1,788.51 = 534.20 : x
  2. Step 2: Convert to fraction form
    1,192.46/1,788.51 = 534.20/x
  3. Step 3: Cross multiply
    1,192.46x = 1,788.51 × 534.20
  4. Step 4: Simplify right side
    1,192.46x = 955,422.04
  5. Step 5: Solve for x
    x = 955,422.04/1,192.46
  6. Step 6: Final answer
    x = 801.22

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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.