Home / 1,317,618.36-1,976,406.75-419,047.11

Finding the Fourth Proportional to 1,317,618.36, 1,976,406.75 and 419,047.11

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Solution

The fourth proportional to 1,317,618.36, 1,976,406.75 and 419,047.11 is: 628,564.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,618.36 : 1,976,406.75 = 419,047.11 : x
  2. Step 2: Convert to fraction form
    1,317,618.36/1,976,406.75 = 419,047.11/x
  3. Step 3: Cross multiply
    1,317,618.36x = 1,976,406.75 × 419,047.11
  4. Step 4: Simplify right side
    1,317,618.36x = 828,207,536,771.99
  5. Step 5: Solve for x
    x = 828,207,536,771.99/1,317,618.36
  6. Step 6: Final answer
    x = 628,564.05

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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.