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Finding the Fourth Proportional to 605,226.45, 907,959.30 and 178,769.70

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Solution

The fourth proportional to 605,226.45, 907,959.30 and 178,769.70 is: 268,189.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,226.45 : 907,959.30 = 178,769.70 : x
  2. Step 2: Convert to fraction form
    605,226.45/907,959.30 = 178,769.70/x
  3. Step 3: Cross multiply
    605,226.45x = 907,959.30 × 178,769.70
  4. Step 4: Simplify right side
    605,226.45x = 162,315,611,673.21
  5. Step 5: Solve for x
    x = 162,315,611,673.21/605,226.45
  6. Step 6: Final answer
    x = 268,189.88

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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.