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Finding the Fourth Proportional to 613,388.20, 920,119.04 and 192,664.06

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Solution

The fourth proportional to 613,388.20, 920,119.04 and 192,664.06 is: 289,007.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,388.20 : 920,119.04 = 192,664.06 : x
  2. Step 2: Convert to fraction form
    613,388.20/920,119.04 = 192,664.06/x
  3. Step 3: Cross multiply
    613,388.20x = 920,119.04 × 192,664.06
  4. Step 4: Simplify right side
    613,388.20x = 177,273,869,929.70
  5. Step 5: Solve for x
    x = 177,273,869,929.70/613,388.20
  6. Step 6: Final answer
    x = 289,007.63

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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.