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Finding the Fourth Proportional to 1,614.84, 2,228.16 and 951.72

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Solution

The fourth proportional to 1,614.84, 2,228.16 and 951.72 is: 1,313.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,614.84 : 2,228.16 = 951.72 : x
  2. Step 2: Convert to fraction form
    1,614.84/2,228.16 = 951.72/x
  3. Step 3: Cross multiply
    1,614.84x = 2,228.16 × 951.72
  4. Step 4: Simplify right side
    1,614.84x = 2,120,584.44
  5. Step 5: Solve for x
    x = 2,120,584.44/1,614.84
  6. Step 6: Final answer
    x = 1,313.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.