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Finding the Fourth Proportional to 467,858.40, 701,787.60 and 418,869.60

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Solution

The fourth proportional to 467,858.40, 701,787.60 and 418,869.60 is: 628,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,858.40 : 701,787.60 = 418,869.60 : x
  2. Step 2: Convert to fraction form
    467,858.40/701,787.60 = 418,869.60/x
  3. Step 3: Cross multiply
    467,858.40x = 701,787.60 × 418,869.60
  4. Step 4: Simplify right side
    467,858.40x = 293,957,491,296.96
  5. Step 5: Solve for x
    x = 293,957,491,296.96/467,858.40
  6. Step 6: Final answer
    x = 628,304.40

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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.