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Finding the Fourth Proportional to 338,469.40, 507,704.10 and 180,616.60

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Solution

The fourth proportional to 338,469.40, 507,704.10 and 180,616.60 is: 270,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,469.40 : 507,704.10 = 180,616.60 : x
  2. Step 2: Convert to fraction form
    338,469.40/507,704.10 = 180,616.60/x
  3. Step 3: Cross multiply
    338,469.40x = 507,704.10 × 180,616.60
  4. Step 4: Simplify right side
    338,469.40x = 91,699,788,348.06
  5. Step 5: Solve for x
    x = 91,699,788,348.06/338,469.40
  6. Step 6: Final answer
    x = 270,924.90

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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.