Home / 1,719,119.80-2,578,679.70-1,419,938.20

Finding the Fourth Proportional to 1,719,119.80, 2,578,679.70 and 1,419,938.20

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Solution

The fourth proportional to 1,719,119.80, 2,578,679.70 and 1,419,938.20 is: 2,129,907.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719,119.80 : 2,578,679.70 = 1,419,938.20 : x
  2. Step 2: Convert to fraction form
    1,719,119.80/2,578,679.70 = 1,419,938.20/x
  3. Step 3: Cross multiply
    1,719,119.80x = 2,578,679.70 × 1,419,938.20
  4. Step 4: Simplify right side
    1,719,119.80x = 3,661,565,811,594.54
  5. Step 5: Solve for x
    x = 3,661,565,811,594.54/1,719,119.80
  6. Step 6: Final answer
    x = 2,129,907.30

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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.