Home / 1,285,866.73-1,928,880.27-339,238.36

Finding the Fourth Proportional to 1,285,866.73, 1,928,880.27 and 339,238.36

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Solution

The fourth proportional to 1,285,866.73, 1,928,880.27 and 339,238.36 is: 508,878.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,866.73 : 1,928,880.27 = 339,238.36 : x
  2. Step 2: Convert to fraction form
    1,285,866.73/1,928,880.27 = 339,238.36/x
  3. Step 3: Cross multiply
    1,285,866.73x = 1,928,880.27 × 339,238.36
  4. Step 4: Simplify right side
    1,285,866.73x = 654,350,179,431.16
  5. Step 5: Solve for x
    x = 654,350,179,431.16/1,285,866.73
  6. Step 6: Final answer
    x = 508,878.69

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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.