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Finding the Fourth Proportional to 446,906.70, 670,217.85 and 147,331.44

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Solution

The fourth proportional to 446,906.70, 670,217.85 and 147,331.44 is: 220,950.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,906.70 : 670,217.85 = 147,331.44 : x
  2. Step 2: Convert to fraction form
    446,906.70/670,217.85 = 147,331.44/x
  3. Step 3: Cross multiply
    446,906.70x = 670,217.85 × 147,331.44
  4. Step 4: Simplify right side
    446,906.70x = 98,744,160,954.20
  5. Step 5: Solve for x
    x = 98,744,160,954.20/446,906.70
  6. Step 6: Final answer
    x = 220,950.28

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1.5x scale

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.