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Finding the Fourth Proportional to 2,569.14, 3,853.69 and 621.34

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Solution

The fourth proportional to 2,569.14, 3,853.69 and 621.34 is: 932.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,569.14 : 3,853.69 = 621.34 : x
  2. Step 2: Convert to fraction form
    2,569.14/3,853.69 = 621.34/x
  3. Step 3: Cross multiply
    2,569.14x = 3,853.69 × 621.34
  4. Step 4: Simplify right side
    2,569.14x = 2,394,451.74
  5. Step 5: Solve for x
    x = 2,394,451.74/2,569.14
  6. Step 6: Final answer
    x = 932.01

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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.