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Finding the Fourth Proportional to 1,794.18, 2,690.26 and 697.63

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Solution

The fourth proportional to 1,794.18, 2,690.26 and 697.63 is: 1,046.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,794.18 : 2,690.26 = 697.63 : x
  2. Step 2: Convert to fraction form
    1,794.18/2,690.26 = 697.63/x
  3. Step 3: Cross multiply
    1,794.18x = 2,690.26 × 697.63
  4. Step 4: Simplify right side
    1,794.18x = 1,876,806.08
  5. Step 5: Solve for x
    x = 1,876,806.08/1,794.18
  6. Step 6: Final answer
    x = 1,046.05

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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.