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Finding the Fourth Proportional to 605,226.89, 907,628.15 and 178,648.90

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Solution

The fourth proportional to 605,226.89, 907,628.15 and 178,648.90 is: 267,910.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,226.89 : 907,628.15 = 178,648.90 : x
  2. Step 2: Convert to fraction form
    605,226.89/907,628.15 = 178,648.90/x
  3. Step 3: Cross multiply
    605,226.89x = 907,628.15 × 178,648.90
  4. Step 4: Simplify right side
    605,226.89x = 162,146,768,784.09
  5. Step 5: Solve for x
    x = 162,146,768,784.09/605,226.89
  6. Step 6: Final answer
    x = 267,910.71

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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.