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Finding the Fourth Proportional to 422,787.84, 583,365.05 and 250,674

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Solution

The fourth proportional to 422,787.84, 583,365.05 and 250,674 is: 345,881.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,787.84 : 583,365.05 = 250,674 : x
  2. Step 2: Convert to fraction form
    422,787.84/583,365.05 = 250,674/x
  3. Step 3: Cross multiply
    422,787.84x = 583,365.05 × 250,674
  4. Step 4: Simplify right side
    422,787.84x = 146,234,449,290.33
  5. Step 5: Solve for x
    x = 146,234,449,290.33/422,787.84
  6. Step 6: Final answer
    x = 345,881.40

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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.