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Finding the Fourth Proportional to 492,801.20, 739,201.80 and 118,824.20

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Solution

The fourth proportional to 492,801.20, 739,201.80 and 118,824.20 is: 178,236.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,801.20 : 739,201.80 = 118,824.20 : x
  2. Step 2: Convert to fraction form
    492,801.20/739,201.80 = 118,824.20/x
  3. Step 3: Cross multiply
    492,801.20x = 739,201.80 × 118,824.20
  4. Step 4: Simplify right side
    492,801.20x = 87,835,062,523.56
  5. Step 5: Solve for x
    x = 87,835,062,523.56/492,801.20
  6. Step 6: Final answer
    x = 178,236.30

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1.5x scale

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.