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Finding the Fourth Proportional to 481,416.06, 664,364.40 and 263,633.88

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Solution

The fourth proportional to 481,416.06, 664,364.40 and 263,633.88 is: 363,820.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,416.06 : 664,364.40 = 263,633.88 : x
  2. Step 2: Convert to fraction form
    481,416.06/664,364.40 = 263,633.88/x
  3. Step 3: Cross multiply
    481,416.06x = 664,364.40 × 263,633.88
  4. Step 4: Simplify right side
    481,416.06x = 175,148,964,505.87
  5. Step 5: Solve for x
    x = 175,148,964,505.87/481,416.06
  6. Step 6: Final answer
    x = 363,820.36

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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.