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Finding the Fourth Proportional to 411,325.20, 617,218.20 and 174,627.60

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Solution

The fourth proportional to 411,325.20, 617,218.20 and 174,627.60 is: 262,039.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,325.20 : 617,218.20 = 174,627.60 : x
  2. Step 2: Convert to fraction form
    411,325.20/617,218.20 = 174,627.60/x
  3. Step 3: Cross multiply
    411,325.20x = 617,218.20 × 174,627.60
  4. Step 4: Simplify right side
    411,325.20x = 107,783,332,942.32
  5. Step 5: Solve for x
    x = 107,783,332,942.32/411,325.20
  6. Step 6: Final answer
    x = 262,039.22

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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.