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Finding the Fourth Proportional to 449,219.45, 619,906.57 and 245,266.62

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Solution

The fourth proportional to 449,219.45, 619,906.57 and 245,266.62 is: 338,459.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,219.45 : 619,906.57 = 245,266.62 : x
  2. Step 2: Convert to fraction form
    449,219.45/619,906.57 = 245,266.62/x
  3. Step 3: Cross multiply
    449,219.45x = 619,906.57 × 245,266.62
  4. Step 4: Simplify right side
    449,219.45x = 152,042,386,201.88
  5. Step 5: Solve for x
    x = 152,042,386,201.88/449,219.45
  6. Step 6: Final answer
    x = 338,459.04

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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.