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Finding the Fourth Proportional to 655,051.23, 981,920.93 and 276,063.39

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Solution

The fourth proportional to 655,051.23, 981,920.93 and 276,063.39 is: 413,818.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,051.23 : 981,920.93 = 276,063.39 : x
  2. Step 2: Convert to fraction form
    655,051.23/981,920.93 = 276,063.39/x
  3. Step 3: Cross multiply
    655,051.23x = 981,920.93 × 276,063.39
  4. Step 4: Simplify right side
    655,051.23x = 271,072,419,267.44
  5. Step 5: Solve for x
    x = 271,072,419,267.44/655,051.23
  6. Step 6: Final answer
    x = 413,818.66

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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.