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Finding the Fourth Proportional to 411,525.20, 617,287.80 and 366,910.40

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Solution

The fourth proportional to 411,525.20, 617,287.80 and 366,910.40 is: 550,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,525.20 : 617,287.80 = 366,910.40 : x
  2. Step 2: Convert to fraction form
    411,525.20/617,287.80 = 366,910.40/x
  3. Step 3: Cross multiply
    411,525.20x = 617,287.80 × 366,910.40
  4. Step 4: Simplify right side
    411,525.20x = 226,489,313,613.12
  5. Step 5: Solve for x
    x = 226,489,313,613.12/411,525.20
  6. Step 6: Final answer
    x = 550,365.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.