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Finding the Fourth Proportional to 2,522.25, 3,783.38 and 698.25

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Solution

The fourth proportional to 2,522.25, 3,783.38 and 698.25 is: 1,047.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,522.25 : 3,783.38 = 698.25 : x
  2. Step 2: Convert to fraction form
    2,522.25/3,783.38 = 698.25/x
  3. Step 3: Cross multiply
    2,522.25x = 3,783.38 × 698.25
  4. Step 4: Simplify right side
    2,522.25x = 2,641,745.09
  5. Step 5: Solve for x
    x = 2,641,745.09/2,522.25
  6. Step 6: Final answer
    x = 1,047.38

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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.