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Finding the Fourth Proportional to 449,365.49, 620,128.01 and 248,161.49

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Solution

The fourth proportional to 449,365.49, 620,128.01 and 248,161.49 is: 342,464.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,365.49 : 620,128.01 = 248,161.49 : x
  2. Step 2: Convert to fraction form
    449,365.49/620,128.01 = 248,161.49/x
  3. Step 3: Cross multiply
    449,365.49x = 620,128.01 × 248,161.49
  4. Step 4: Simplify right side
    449,365.49x = 153,891,889,711.53
  5. Step 5: Solve for x
    x = 153,891,889,711.53/449,365.49
  6. Step 6: Final answer
    x = 342,464.86

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