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Finding the Fourth Proportional to 551,356.20, 827,178.30 and 177,388.20

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Solution

The fourth proportional to 551,356.20, 827,178.30 and 177,388.20 is: 266,128.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,356.20 : 827,178.30 = 177,388.20 : x
  2. Step 2: Convert to fraction form
    551,356.20/827,178.30 = 177,388.20/x
  3. Step 3: Cross multiply
    551,356.20x = 827,178.30 × 177,388.20
  4. Step 4: Simplify right side
    551,356.20x = 146,731,669,716.06
  5. Step 5: Solve for x
    x = 146,731,669,716.06/551,356.20
  6. Step 6: Final answer
    x = 266,128.63

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1.5x scale

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.