Home / 1,285,906.80-1,928,940.48-339,278.52

Finding the Fourth Proportional to 1,285,906.80, 1,928,940.48 and 339,278.52

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Solution

The fourth proportional to 1,285,906.80, 1,928,940.48 and 339,278.52 is: 508,938.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,906.80 : 1,928,940.48 = 339,278.52 : x
  2. Step 2: Convert to fraction form
    1,285,906.80/1,928,940.48 = 339,278.52/x
  3. Step 3: Cross multiply
    1,285,906.80x = 1,928,940.48 × 339,278.52
  4. Step 4: Simplify right side
    1,285,906.80x = 654,448,071,222.49
  5. Step 5: Solve for x
    x = 654,448,071,222.49/1,285,906.80
  6. Step 6: Final answer
    x = 508,938.96

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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.