Home / 939,818.57-1,296,640.91-531,879.89

Finding the Fourth Proportional to 939,818.57, 1,296,640.91 and 531,879.89

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Solution

The fourth proportional to 939,818.57, 1,296,640.91 and 531,879.89 is: 733,819.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,818.57 : 1,296,640.91 = 531,879.89 : x
  2. Step 2: Convert to fraction form
    939,818.57/1,296,640.91 = 531,879.89/x
  3. Step 3: Cross multiply
    939,818.57x = 1,296,640.91 × 531,879.89
  4. Step 4: Simplify right side
    939,818.57x = 689,657,219,426.80
  5. Step 5: Solve for x
    x = 689,657,219,426.80/939,818.57
  6. Step 6: Final answer
    x = 733,819.53

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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.