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Finding the Fourth Proportional to 2,594.30, 3,890.27 and 949.70

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Solution

The fourth proportional to 2,594.30, 3,890.27 and 949.70 is: 1,424.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,594.30 : 3,890.27 = 949.70 : x
  2. Step 2: Convert to fraction form
    2,594.30/3,890.27 = 949.70/x
  3. Step 3: Cross multiply
    2,594.30x = 3,890.27 × 949.70
  4. Step 4: Simplify right side
    2,594.30x = 3,694,565.22
  5. Step 5: Solve for x
    x = 3,694,565.22/2,594.30
  6. Step 6: Final answer
    x = 1,424.11

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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.