Home / 1,285,865.73-1,928,878.77-339,237.36

Finding the Fourth Proportional to 1,285,865.73, 1,928,878.77 and 339,237.36

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Solution

The fourth proportional to 1,285,865.73, 1,928,878.77 and 339,237.36 is: 508,877.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,865.73 : 1,928,878.77 = 339,237.36 : x
  2. Step 2: Convert to fraction form
    1,285,865.73/1,928,878.77 = 339,237.36/x
  3. Step 3: Cross multiply
    1,285,865.73x = 1,928,878.77 × 339,237.36
  4. Step 4: Simplify right side
    1,285,865.73x = 654,347,741,694.85
  5. Step 5: Solve for x
    x = 654,347,741,694.85/1,285,865.73
  6. Step 6: Final answer
    x = 508,877.19

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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.