Home / 1,656,672.82-2,485,040.31-519,409.78

Finding the Fourth Proportional to 1,656,672.82, 2,485,040.31 and 519,409.78

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Solution

The fourth proportional to 1,656,672.82, 2,485,040.31 and 519,409.78 is: 779,124.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656,672.82 : 2,485,040.31 = 519,409.78 : x
  2. Step 2: Convert to fraction form
    1,656,672.82/2,485,040.31 = 519,409.78/x
  3. Step 3: Cross multiply
    1,656,672.82x = 2,485,040.31 × 519,409.78
  4. Step 4: Simplify right side
    1,656,672.82x = 1,290,754,248,473.98
  5. Step 5: Solve for x
    x = 1,290,754,248,473.98/1,656,672.82
  6. Step 6: Final answer
    x = 779,124.42

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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.