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Finding the Fourth Proportional to 2,529.46, 3,794.51 and 990.26

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Solution

The fourth proportional to 2,529.46, 3,794.51 and 990.26 is: 1,485.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,529.46 : 3,794.51 = 990.26 : x
  2. Step 2: Convert to fraction form
    2,529.46/3,794.51 = 990.26/x
  3. Step 3: Cross multiply
    2,529.46x = 3,794.51 × 990.26
  4. Step 4: Simplify right side
    2,529.46x = 3,757,551.47
  5. Step 5: Solve for x
    x = 3,757,551.47/2,529.46
  6. Step 6: Final answer
    x = 1,485.52

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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.