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Finding the Fourth Proportional to 431,787.15, 595,866.83 and 238,190.49

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Solution

The fourth proportional to 431,787.15, 595,866.83 and 238,190.49 is: 328,703.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,787.15 : 595,866.83 = 238,190.49 : x
  2. Step 2: Convert to fraction form
    431,787.15/595,866.83 = 238,190.49/x
  3. Step 3: Cross multiply
    431,787.15x = 595,866.83 × 238,190.49
  4. Step 4: Simplify right side
    431,787.15x = 141,929,811,021.49
  5. Step 5: Solve for x
    x = 141,929,811,021.49/431,787.15
  6. Step 6: Final answer
    x = 328,703.18

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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.