Home / 1,556,643.78-2,334,772.44-419,494.95

Finding the Fourth Proportional to 1,556,643.78, 2,334,772.44 and 419,494.95

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Solution

The fourth proportional to 1,556,643.78, 2,334,772.44 and 419,494.95 is: 629,190.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,643.78 : 2,334,772.44 = 419,494.95 : x
  2. Step 2: Convert to fraction form
    1,556,643.78/2,334,772.44 = 419,494.95/x
  3. Step 3: Cross multiply
    1,556,643.78x = 2,334,772.44 × 419,494.95
  4. Step 4: Simplify right side
    1,556,643.78x = 979,425,247,979.18
  5. Step 5: Solve for x
    x = 979,425,247,979.18/1,556,643.78
  6. Step 6: Final answer
    x = 629,190.35

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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.