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Finding the Fourth Proportional to 444,647.44, 613,612.20 and 243,442

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Solution

The fourth proportional to 444,647.44, 613,612.20 and 243,442 is: 335,949.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,647.44 : 613,612.20 = 243,442 : x
  2. Step 2: Convert to fraction form
    444,647.44/613,612.20 = 243,442/x
  3. Step 3: Cross multiply
    444,647.44x = 613,612.20 × 243,442
  4. Step 4: Simplify right side
    444,647.44x = 149,378,981,192.40
  5. Step 5: Solve for x
    x = 149,378,981,192.40/444,647.44
  6. Step 6: Final answer
    x = 335,949.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.