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Finding the Fourth Proportional to 394,617.67, 544,439.13 and 224,731.51

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Solution

The fourth proportional to 394,617.67, 544,439.13 and 224,731.51 is: 310,053.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,617.67 : 544,439.13 = 224,731.51 : x
  2. Step 2: Convert to fraction form
    394,617.67/544,439.13 = 224,731.51/x
  3. Step 3: Cross multiply
    394,617.67x = 544,439.13 × 224,731.51
  4. Step 4: Simplify right side
    394,617.67x = 122,352,627,787.99
  5. Step 5: Solve for x
    x = 122,352,627,787.99/394,617.67
  6. Step 6: Final answer
    x = 310,053.60

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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.