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Finding the Fourth Proportional to 611,773.41, 844,223.83 and 339,858.40

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Solution

The fourth proportional to 611,773.41, 844,223.83 and 339,858.40 is: 468,991.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,773.41 : 844,223.83 = 339,858.40 : x
  2. Step 2: Convert to fraction form
    611,773.41/844,223.83 = 339,858.40/x
  3. Step 3: Cross multiply
    611,773.41x = 844,223.83 × 339,858.40
  4. Step 4: Simplify right side
    611,773.41x = 286,916,560,640.09
  5. Step 5: Solve for x
    x = 286,916,560,640.09/611,773.41
  6. Step 6: Final answer
    x = 468,991.55

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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.