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Finding the Fourth Proportional to 2,863,859.05, 4,296,978.21 and 1,159,207.36

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Solution

The fourth proportional to 2,863,859.05, 4,296,978.21 and 1,159,207.36 is: 1,739,292.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863,859.05 : 4,296,978.21 = 1,159,207.36 : x
  2. Step 2: Convert to fraction form
    2,863,859.05/4,296,978.21 = 1,159,207.36/x
  3. Step 3: Cross multiply
    2,863,859.05x = 4,296,978.21 × 1,159,207.36
  4. Step 4: Simplify right side
    2,863,859.05x = 4,981,088,766,791.63
  5. Step 5: Solve for x
    x = 4,981,088,766,791.63/2,863,859.05
  6. Step 6: Final answer
    x = 1,739,292.57

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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.