Home / 1,273,951.80-1,910,927.70-515,791.80

Finding the Fourth Proportional to 1,273,951.80, 1,910,927.70 and 515,791.80

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Solution

The fourth proportional to 1,273,951.80, 1,910,927.70 and 515,791.80 is: 773,687.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,951.80 : 1,910,927.70 = 515,791.80 : x
  2. Step 2: Convert to fraction form
    1,273,951.80/1,910,927.70 = 515,791.80/x
  3. Step 3: Cross multiply
    1,273,951.80x = 1,910,927.70 × 515,791.80
  4. Step 4: Simplify right side
    1,273,951.80x = 985,640,838,052.86
  5. Step 5: Solve for x
    x = 985,640,838,052.86/1,273,951.80
  6. Step 6: Final answer
    x = 773,687.70

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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.