Home / 1,296,635.58-1,944,532.80-431,840.34

Finding the Fourth Proportional to 1,296,635.58, 1,944,532.80 and 431,840.34

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Solution

The fourth proportional to 1,296,635.58, 1,944,532.80 and 431,840.34 is: 647,620.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,635.58 : 1,944,532.80 = 431,840.34 : x
  2. Step 2: Convert to fraction form
    1,296,635.58/1,944,532.80 = 431,840.34/x
  3. Step 3: Cross multiply
    1,296,635.58x = 1,944,532.80 × 431,840.34
  4. Step 4: Simplify right side
    1,296,635.58x = 839,727,705,493.15
  5. Step 5: Solve for x
    x = 839,727,705,493.15/1,296,635.58
  6. Step 6: Final answer
    x = 647,620.44

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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.