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Finding the Fourth Proportional to 1,394.97, 2,092.77 and 529.29

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Solution

The fourth proportional to 1,394.97, 2,092.77 and 529.29 is: 794.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.97 : 2,092.77 = 529.29 : x
  2. Step 2: Convert to fraction form
    1,394.97/2,092.77 = 529.29/x
  3. Step 3: Cross multiply
    1,394.97x = 2,092.77 × 529.29
  4. Step 4: Simplify right side
    1,394.97x = 1,107,682.23
  5. Step 5: Solve for x
    x = 1,107,682.23/1,394.97
  6. Step 6: Final answer
    x = 794.05

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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.