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Finding the Fourth Proportional to 416,625.60, 624,970.78 and 136,171.20

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Solution

The fourth proportional to 416,625.60, 624,970.78 and 136,171.20 is: 204,267.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,625.60 : 624,970.78 = 136,171.20 : x
  2. Step 2: Convert to fraction form
    416,625.60/624,970.78 = 136,171.20/x
  3. Step 3: Cross multiply
    416,625.60x = 624,970.78 × 136,171.20
  4. Step 4: Simplify right side
    416,625.60x = 85,103,021,077.54
  5. Step 5: Solve for x
    x = 85,103,021,077.54/416,625.60
  6. Step 6: Final answer
    x = 204,267.38

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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.