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Finding the Fourth Proportional to 1,994.85, 2,992.29 and 696.33

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Solution

The fourth proportional to 1,994.85, 2,992.29 and 696.33 is: 1,044.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.85 : 2,992.29 = 696.33 : x
  2. Step 2: Convert to fraction form
    1,994.85/2,992.29 = 696.33/x
  3. Step 3: Cross multiply
    1,994.85x = 2,992.29 × 696.33
  4. Step 4: Simplify right side
    1,994.85x = 2,083,621.30
  5. Step 5: Solve for x
    x = 2,083,621.30/1,994.85
  6. Step 6: Final answer
    x = 1,044.50

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1.5x scale

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.