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Finding the Fourth Proportional to 1,794.30, 2,691.96 and 698.98

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Solution

The fourth proportional to 1,794.30, 2,691.96 and 698.98 is: 1,048.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,794.30 : 2,691.96 = 698.98 : x
  2. Step 2: Convert to fraction form
    1,794.30/2,691.96 = 698.98/x
  3. Step 3: Cross multiply
    1,794.30x = 2,691.96 × 698.98
  4. Step 4: Simplify right side
    1,794.30x = 1,881,610.12
  5. Step 5: Solve for x
    x = 1,881,610.12/1,794.30
  6. Step 6: Final answer
    x = 1,048.66

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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.