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Finding the Fourth Proportional to 481,642.64, 664,659.36 and 263,849.48

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Solution

The fourth proportional to 481,642.64, 664,659.36 and 263,849.48 is: 364,108.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,642.64 : 664,659.36 = 263,849.48 : x
  2. Step 2: Convert to fraction form
    481,642.64/664,659.36 = 263,849.48/x
  3. Step 3: Cross multiply
    481,642.64x = 664,659.36 × 263,849.48
  4. Step 4: Simplify right side
    481,642.64x = 175,370,026,513.13
  5. Step 5: Solve for x
    x = 175,370,026,513.13/481,642.64
  6. Step 6: Final answer
    x = 364,108.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.