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Finding the Fourth Proportional to 1,840.92, 2,540.44 and 1,054.92

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Solution

The fourth proportional to 1,840.92, 2,540.44 and 1,054.92 is: 1,455.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,840.92 : 2,540.44 = 1,054.92 : x
  2. Step 2: Convert to fraction form
    1,840.92/2,540.44 = 1,054.92/x
  3. Step 3: Cross multiply
    1,840.92x = 2,540.44 × 1,054.92
  4. Step 4: Simplify right side
    1,840.92x = 2,679,960.96
  5. Step 5: Solve for x
    x = 2,679,960.96/1,840.92
  6. Step 6: Final answer
    x = 1,455.77

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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.