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Finding the Fourth Proportional to 2,261.46, 3,392.58 and 800.22

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Solution

The fourth proportional to 2,261.46, 3,392.58 and 800.22 is: 1,200.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.46 : 3,392.58 = 800.22 : x
  2. Step 2: Convert to fraction form
    2,261.46/3,392.58 = 800.22/x
  3. Step 3: Cross multiply
    2,261.46x = 3,392.58 × 800.22
  4. Step 4: Simplify right side
    2,261.46x = 2,714,810.37
  5. Step 5: Solve for x
    x = 2,714,810.37/2,261.46
  6. Step 6: Final answer
    x = 1,200.47

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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.