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Finding the Fourth Proportional to 3,049.45, 4,574.82 and 969.20

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Solution

The fourth proportional to 3,049.45, 4,574.82 and 969.20 is: 1,454.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,049.45 : 4,574.82 = 969.20 : x
  2. Step 2: Convert to fraction form
    3,049.45/4,574.82 = 969.20/x
  3. Step 3: Cross multiply
    3,049.45x = 4,574.82 × 969.20
  4. Step 4: Simplify right side
    3,049.45x = 4,433,915.54
  5. Step 5: Solve for x
    x = 4,433,915.54/3,049.45
  6. Step 6: Final answer
    x = 1,454.00

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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.