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Finding the Fourth Proportional to 451,678.22, 677,302.71 and 262,196.67

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Solution

The fourth proportional to 451,678.22, 677,302.71 and 262,196.67 is: 393,170.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,678.22 : 677,302.71 = 262,196.67 : x
  2. Step 2: Convert to fraction form
    451,678.22/677,302.71 = 262,196.67/x
  3. Step 3: Cross multiply
    451,678.22x = 677,302.71 × 262,196.67
  4. Step 4: Simplify right side
    451,678.22x = 177,586,515,143.98
  5. Step 5: Solve for x
    x = 177,586,515,143.98/451,678.22
  6. Step 6: Final answer
    x = 393,170.42

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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.