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Finding the Fourth Proportional to 444,997.92, 613,636.92 and 309,185.76

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Solution

The fourth proportional to 444,997.92, 613,636.92 and 309,185.76 is: 426,356.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,997.92 : 613,636.92 = 309,185.76 : x
  2. Step 2: Convert to fraction form
    444,997.92/613,636.92 = 309,185.76/x
  3. Step 3: Cross multiply
    444,997.92x = 613,636.92 × 309,185.76
  4. Step 4: Simplify right side
    444,997.92x = 189,727,797,474.26
  5. Step 5: Solve for x
    x = 189,727,797,474.26/444,997.92
  6. Step 6: Final answer
    x = 426,356.59

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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.