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Finding the Fourth Proportional to 416,081.73, 624,187.40 and 135,533.73

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Solution

The fourth proportional to 416,081.73, 624,187.40 and 135,533.73 is: 203,321.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,081.73 : 624,187.40 = 135,533.73 : x
  2. Step 2: Convert to fraction form
    416,081.73/624,187.40 = 135,533.73/x
  3. Step 3: Cross multiply
    416,081.73x = 624,187.40 × 135,533.73
  4. Step 4: Simplify right side
    416,081.73x = 84,598,446,541.00
  5. Step 5: Solve for x
    x = 84,598,446,541.00/416,081.73
  6. Step 6: Final answer
    x = 203,321.70

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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.