Home / 1,317,620.61-1,976,410.13-419,049.36

Finding the Fourth Proportional to 1,317,620.61, 1,976,410.13 and 419,049.36

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Solution

The fourth proportional to 1,317,620.61, 1,976,410.13 and 419,049.36 is: 628,567.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,620.61 : 1,976,410.13 = 419,049.36 : x
  2. Step 2: Convert to fraction form
    1,317,620.61/1,976,410.13 = 419,049.36/x
  3. Step 3: Cross multiply
    1,317,620.61x = 1,976,410.13 × 419,049.36
  4. Step 4: Simplify right side
    1,317,620.61x = 828,213,397,978.77
  5. Step 5: Solve for x
    x = 828,213,397,978.77/1,317,620.61
  6. Step 6: Final answer
    x = 628,567.43

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.