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Finding the Fourth Proportional to 320,690.64, 481,201.96 and 232,670.64

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Solution

The fourth proportional to 320,690.64, 481,201.96 and 232,670.64 is: 349,126.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,690.64 : 481,201.96 = 232,670.64 : x
  2. Step 2: Convert to fraction form
    320,690.64/481,201.96 = 232,670.64/x
  3. Step 3: Cross multiply
    320,690.64x = 481,201.96 × 232,670.64
  4. Step 4: Simplify right side
    320,690.64x = 111,961,568,002.45
  5. Step 5: Solve for x
    x = 111,961,568,002.45/320,690.64
  6. Step 6: Final answer
    x = 349,126.40

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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.