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Finding the Fourth Proportional to 442,761.52, 611,168.66 and 261,474.18

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Solution

The fourth proportional to 442,761.52, 611,168.66 and 261,474.18 is: 360,927.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,761.52 : 611,168.66 = 261,474.18 : x
  2. Step 2: Convert to fraction form
    442,761.52/611,168.66 = 261,474.18/x
  3. Step 3: Cross multiply
    442,761.52x = 611,168.66 × 261,474.18
  4. Step 4: Simplify right side
    442,761.52x = 159,804,824,215.20
  5. Step 5: Solve for x
    x = 159,804,824,215.20/442,761.52
  6. Step 6: Final answer
    x = 360,927.54

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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.