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Finding the Fourth Proportional to 627,787.80, 941,900.40 and 273,056.40

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Solution

The fourth proportional to 627,787.80, 941,900.40 and 273,056.40 is: 409,679.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,787.80 : 941,900.40 = 273,056.40 : x
  2. Step 2: Convert to fraction form
    627,787.80/941,900.40 = 273,056.40/x
  3. Step 3: Cross multiply
    627,787.80x = 941,900.40 × 273,056.40
  4. Step 4: Simplify right side
    627,787.80x = 257,191,932,382.56
  5. Step 5: Solve for x
    x = 257,191,932,382.56/627,787.80
  6. Step 6: Final answer
    x = 409,679.72

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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.