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Finding the Fourth Proportional to 351,614.73, 485,230.65 and 190,469.77

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Solution

The fourth proportional to 351,614.73, 485,230.65 and 190,469.77 is: 262,849.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,614.73 : 485,230.65 = 190,469.77 : x
  2. Step 2: Convert to fraction form
    351,614.73/485,230.65 = 190,469.77/x
  3. Step 3: Cross multiply
    351,614.73x = 485,230.65 × 190,469.77
  4. Step 4: Simplify right side
    351,614.73x = 92,421,770,302.45
  5. Step 5: Solve for x
    x = 92,421,770,302.45/351,614.73
  6. Step 6: Final answer
    x = 262,849.54

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1.5x scale

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.