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Finding the Fourth Proportional to 299,692.20, 449,307.90 and 168,364.20

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Solution

The fourth proportional to 299,692.20, 449,307.90 and 168,364.20 is: 252,416.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,692.20 : 449,307.90 = 168,364.20 : x
  2. Step 2: Convert to fraction form
    299,692.20/449,307.90 = 168,364.20/x
  3. Step 3: Cross multiply
    299,692.20x = 449,307.90 × 168,364.20
  4. Step 4: Simplify right side
    299,692.20x = 75,647,365,137.18
  5. Step 5: Solve for x
    x = 75,647,365,137.18/299,692.20
  6. Step 6: Final answer
    x = 252,416.86

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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.