Home / 1,643,932.83-2,268,619.74-918,780.33

Finding the Fourth Proportional to 1,643,932.83, 2,268,619.74 and 918,780.33

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Solution

The fourth proportional to 1,643,932.83, 2,268,619.74 and 918,780.33 is: 1,267,912.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,932.83 : 2,268,619.74 = 918,780.33 : x
  2. Step 2: Convert to fraction form
    1,643,932.83/2,268,619.74 = 918,780.33/x
  3. Step 3: Cross multiply
    1,643,932.83x = 2,268,619.74 × 918,780.33
  4. Step 4: Simplify right side
    1,643,932.83x = 2,084,363,193,361.71
  5. Step 5: Solve for x
    x = 2,084,363,193,361.71/1,643,932.83
  6. Step 6: Final answer
    x = 1,267,912.63

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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.