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Finding the Fourth Proportional to 629,780.51, 945,036.56 and 265,015.22

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Solution

The fourth proportional to 629,780.51, 945,036.56 and 265,015.22 is: 397,676.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,780.51 : 945,036.56 = 265,015.22 : x
  2. Step 2: Convert to fraction form
    629,780.51/945,036.56 = 265,015.22/x
  3. Step 3: Cross multiply
    629,780.51x = 945,036.56 × 265,015.22
  4. Step 4: Simplify right side
    629,780.51x = 250,449,067,793.80
  5. Step 5: Solve for x
    x = 250,449,067,793.80/629,780.51
  6. Step 6: Final answer
    x = 397,676.75

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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.