Home / 1,405,385.70-1,939,416.17-760,791.75

Finding the Fourth Proportional to 1,405,385.70, 1,939,416.17 and 760,791.75

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Solution

The fourth proportional to 1,405,385.70, 1,939,416.17 and 760,791.75 is: 1,049,883.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,385.70 : 1,939,416.17 = 760,791.75 : x
  2. Step 2: Convert to fraction form
    1,405,385.70/1,939,416.17 = 760,791.75/x
  3. Step 3: Cross multiply
    1,405,385.70x = 1,939,416.17 × 760,791.75
  4. Step 4: Simplify right side
    1,405,385.70x = 1,475,491,821,952.60
  5. Step 5: Solve for x
    x = 1,475,491,821,952.60/1,405,385.70
  6. Step 6: Final answer
    x = 1,049,883.90

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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.