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Finding the Fourth Proportional to 489,245.49, 675,093.56 and 271,450.67

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Solution

The fourth proportional to 489,245.49, 675,093.56 and 271,450.67 is: 374,565.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,245.49 : 675,093.56 = 271,450.67 : x
  2. Step 2: Convert to fraction form
    489,245.49/675,093.56 = 271,450.67/x
  3. Step 3: Cross multiply
    489,245.49x = 675,093.56 × 271,450.67
  4. Step 4: Simplify right side
    489,245.49x = 183,254,594,441.96
  5. Step 5: Solve for x
    x = 183,254,594,441.96/489,245.49
  6. Step 6: Final answer
    x = 374,565.73

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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.