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Finding the Fourth Proportional to 449,840.67, 620,793.32 and 245,902.83

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Solution

The fourth proportional to 449,840.67, 620,793.32 and 245,902.83 is: 339,353.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,840.67 : 620,793.32 = 245,902.83 : x
  2. Step 2: Convert to fraction form
    449,840.67/620,793.32 = 245,902.83/x
  3. Step 3: Cross multiply
    449,840.67x = 620,793.32 × 245,902.83
  4. Step 4: Simplify right side
    449,840.67x = 152,654,833,003.58
  5. Step 5: Solve for x
    x = 152,654,833,003.58/449,840.67
  6. Step 6: Final answer
    x = 339,353.12

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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.