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Finding the Fourth Proportional to 1,261.98, 1,893.31 and 532.04

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Solution

The fourth proportional to 1,261.98, 1,893.31 and 532.04 is: 798.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261.98 : 1,893.31 = 532.04 : x
  2. Step 2: Convert to fraction form
    1,261.98/1,893.31 = 532.04/x
  3. Step 3: Cross multiply
    1,261.98x = 1,893.31 × 532.04
  4. Step 4: Simplify right side
    1,261.98x = 1,007,305.86
  5. Step 5: Solve for x
    x = 1,007,305.86/1,261.98
  6. Step 6: Final answer
    x = 798.19

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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.