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Finding the Fourth Proportional to 297,728.80, 446,593.20 and 264,551.20

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Solution

The fourth proportional to 297,728.80, 446,593.20 and 264,551.20 is: 396,826.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,728.80 : 446,593.20 = 264,551.20 : x
  2. Step 2: Convert to fraction form
    297,728.80/446,593.20 = 264,551.20/x
  3. Step 3: Cross multiply
    297,728.80x = 446,593.20 × 264,551.20
  4. Step 4: Simplify right side
    297,728.80x = 118,146,766,971.84
  5. Step 5: Solve for x
    x = 118,146,766,971.84/297,728.80
  6. Step 6: Final answer
    x = 396,826.80

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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.