Home / 1,916,769.84-2,645,992.56-1,238,037.36

Finding the Fourth Proportional to 1,916,769.84, 2,645,992.56 and 1,238,037.36

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Solution

The fourth proportional to 1,916,769.84, 2,645,992.56 and 1,238,037.36 is: 1,709,040.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,769.84 : 2,645,992.56 = 1,238,037.36 : x
  2. Step 2: Convert to fraction form
    1,916,769.84/2,645,992.56 = 1,238,037.36/x
  3. Step 3: Cross multiply
    1,916,769.84x = 2,645,992.56 × 1,238,037.36
  4. Step 4: Simplify right side
    1,916,769.84x = 3,275,837,643,562.04
  5. Step 5: Solve for x
    x = 3,275,837,643,562.04/1,916,769.84
  6. Step 6: Final answer
    x = 1,709,040.69

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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.