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Finding the Fourth Proportional to 322,647,194.40, 483,970,791.60 and 265,960,154.40

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Solution

The fourth proportional to 322,647,194.40, 483,970,791.60 and 265,960,154.40 is: 398,940,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,647,194.40 : 483,970,791.60 = 265,960,154.40 : x
  2. Step 2: Convert to fraction form
    322,647,194.40/483,970,791.60 = 265,960,154.40/x
  3. Step 3: Cross multiply
    322,647,194.40x = 483,970,791.60 × 265,960,154.40
  4. Step 4: Simplify right side
    322,647,194.40x = 128,716,946,459,026,240
  5. Step 5: Solve for x
    x = 128,716,946,459,026,240/322,647,194.40
  6. Step 6: Final answer
    x = 398,940,231.60

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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.