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Finding the Fourth Proportional to 2,261.59, 3,392.13 and 618.27

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Solution

The fourth proportional to 2,261.59, 3,392.13 and 618.27 is: 927.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.59 : 3,392.13 = 618.27 : x
  2. Step 2: Convert to fraction form
    2,261.59/3,392.13 = 618.27/x
  3. Step 3: Cross multiply
    2,261.59x = 3,392.13 × 618.27
  4. Step 4: Simplify right side
    2,261.59x = 2,097,257.42
  5. Step 5: Solve for x
    x = 2,097,257.42/2,261.59
  6. Step 6: Final answer
    x = 927.34

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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.