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Finding the Fourth Proportional to 449,933.01, 620,924.13 and 245,997.51

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Solution

The fourth proportional to 449,933.01, 620,924.13 and 245,997.51 is: 339,485.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,933.01 : 620,924.13 = 245,997.51 : x
  2. Step 2: Convert to fraction form
    449,933.01/620,924.13 = 245,997.51/x
  3. Step 3: Cross multiply
    449,933.01x = 620,924.13 × 245,997.51
  4. Step 4: Simplify right side
    449,933.01x = 152,745,789,878.92
  5. Step 5: Solve for x
    x = 152,745,789,878.92/449,933.01
  6. Step 6: Final answer
    x = 339,485.63

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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.