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Finding the Fourth Proportional to 489,492.46, 734,238.69 and 173,961.82

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Solution

The fourth proportional to 489,492.46, 734,238.69 and 173,961.82 is: 260,942.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,492.46 : 734,238.69 = 173,961.82 : x
  2. Step 2: Convert to fraction form
    489,492.46/734,238.69 = 173,961.82/x
  3. Step 3: Cross multiply
    489,492.46x = 734,238.69 × 173,961.82
  4. Step 4: Simplify right side
    489,492.46x = 127,729,498,826.82
  5. Step 5: Solve for x
    x = 127,729,498,826.82/489,492.46
  6. Step 6: Final answer
    x = 260,942.73

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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.