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Finding the Fourth Proportional to 411,318.60, 616,103.10 and 341,334.60

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Solution

The fourth proportional to 411,318.60, 616,103.10 and 341,334.60 is: 511,275.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,318.60 : 616,103.10 = 341,334.60 : x
  2. Step 2: Convert to fraction form
    411,318.60/616,103.10 = 341,334.60/x
  3. Step 3: Cross multiply
    411,318.60x = 616,103.10 × 341,334.60
  4. Step 4: Simplify right side
    411,318.60x = 210,297,305,197.26
  5. Step 5: Solve for x
    x = 210,297,305,197.26/411,318.60
  6. Step 6: Final answer
    x = 511,275.94

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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.