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Finding the Fourth Proportional to 397,671.94, 596,443.47 and 127,787.32

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Solution

The fourth proportional to 397,671.94, 596,443.47 and 127,787.32 is: 191,660.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,671.94 : 596,443.47 = 127,787.32 : x
  2. Step 2: Convert to fraction form
    397,671.94/596,443.47 = 127,787.32/x
  3. Step 3: Cross multiply
    397,671.94x = 596,443.47 × 127,787.32
  4. Step 4: Simplify right side
    397,671.94x = 76,217,912,562.80
  5. Step 5: Solve for x
    x = 76,217,912,562.80/397,671.94
  6. Step 6: Final answer
    x = 191,660.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.