Home / 1,643,512.78-2,268,272.94-945,779.25

Finding the Fourth Proportional to 1,643,512.78, 2,268,272.94 and 945,779.25

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Solution

The fourth proportional to 1,643,512.78, 2,268,272.94 and 945,779.25 is: 1,305,305.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,512.78 : 2,268,272.94 = 945,779.25 : x
  2. Step 2: Convert to fraction form
    1,643,512.78/2,268,272.94 = 945,779.25/x
  3. Step 3: Cross multiply
    1,643,512.78x = 2,268,272.94 × 945,779.25
  4. Step 4: Simplify right side
    1,643,512.78x = 2,145,285,484,947.85
  5. Step 5: Solve for x
    x = 2,145,285,484,947.85/1,643,512.78
  6. Step 6: Final answer
    x = 1,305,305.02

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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.