Home / 1,317,627.30-1,976,420.25-419,056.14

Finding the Fourth Proportional to 1,317,627.30, 1,976,420.25 and 419,056.14

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Solution

The fourth proportional to 1,317,627.30, 1,976,420.25 and 419,056.14 is: 628,577.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,627.30 : 1,976,420.25 = 419,056.14 : x
  2. Step 2: Convert to fraction form
    1,317,627.30/1,976,420.25 = 419,056.14/x
  3. Step 3: Cross multiply
    1,317,627.30x = 1,976,420.25 × 419,056.14
  4. Step 4: Simplify right side
    1,317,627.30x = 828,231,040,982.84
  5. Step 5: Solve for x
    x = 828,231,040,982.84/1,317,627.30
  6. Step 6: Final answer
    x = 628,577.63

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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.