Home / 1,919,809.84-2,879,399.56-640,427.16

Finding the Fourth Proportional to 1,919,809.84, 2,879,399.56 and 640,427.16

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Solution

The fourth proportional to 1,919,809.84, 2,879,399.56 and 640,427.16 is: 960,535.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,809.84 : 2,879,399.56 = 640,427.16 : x
  2. Step 2: Convert to fraction form
    1,919,809.84/2,879,399.56 = 640,427.16/x
  3. Step 3: Cross multiply
    1,919,809.84x = 2,879,399.56 × 640,427.16
  4. Step 4: Simplify right side
    1,919,809.84x = 1,844,045,682,716.05
  5. Step 5: Solve for x
    x = 1,844,045,682,716.05/1,919,809.84
  6. Step 6: Final answer
    x = 960,535.59

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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.