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Finding the Fourth Proportional to 1,794.92, 2,690.68 and 698.92

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Solution

The fourth proportional to 1,794.92, 2,690.68 and 698.92 is: 1,047.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,794.92 : 2,690.68 = 698.92 : x
  2. Step 2: Convert to fraction form
    1,794.92/2,690.68 = 698.92/x
  3. Step 3: Cross multiply
    1,794.92x = 2,690.68 × 698.92
  4. Step 4: Simplify right side
    1,794.92x = 1,880,570.07
  5. Step 5: Solve for x
    x = 1,880,570.07/1,794.92
  6. Step 6: Final answer
    x = 1,047.72

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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.