Home / 1,317,624-1,976,436-419,067.60

Finding the Fourth Proportional to 1,317,624, 1,976,436 and 419,067.60

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Solution

The fourth proportional to 1,317,624, 1,976,436 and 419,067.60 is: 628,601.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,624 : 1,976,436 = 419,067.60 : x
  2. Step 2: Convert to fraction form
    1,317,624/1,976,436 = 419,067.60/x
  3. Step 3: Cross multiply
    1,317,624x = 1,976,436 × 419,067.60
  4. Step 4: Simplify right side
    1,317,624x = 828,260,291,073.60
  5. Step 5: Solve for x
    x = 828,260,291,073.60/1,317,624
  6. Step 6: Final answer
    x = 628,601.40

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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.