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Finding the Fourth Proportional to 1,840.32, 2,760.75 and 541.62

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Solution

The fourth proportional to 1,840.32, 2,760.75 and 541.62 is: 812.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,840.32 : 2,760.75 = 541.62 : x
  2. Step 2: Convert to fraction form
    1,840.32/2,760.75 = 541.62/x
  3. Step 3: Cross multiply
    1,840.32x = 2,760.75 × 541.62
  4. Step 4: Simplify right side
    1,840.32x = 1,495,277.42
  5. Step 5: Solve for x
    x = 1,495,277.42/1,840.32
  6. Step 6: Final answer
    x = 812.51

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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.