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Finding the Fourth Proportional to 416,091.80, 624,137.70 and 416,091.80

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Solution

The fourth proportional to 416,091.80, 624,137.70 and 416,091.80 is: 624,137.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,091.80 : 624,137.70 = 416,091.80 : x
  2. Step 2: Convert to fraction form
    416,091.80/624,137.70 = 416,091.80/x
  3. Step 3: Cross multiply
    416,091.80x = 624,137.70 × 416,091.80
  4. Step 4: Simplify right side
    416,091.80x = 259,698,579,040.86
  5. Step 5: Solve for x
    x = 259,698,579,040.86/416,091.80
  6. Step 6: Final answer
    x = 624,137.70

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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.