Home / 822,356.20-1,233,620.70-261,260.20

Finding the Fourth Proportional to 822,356.20, 1,233,620.70 and 261,260.20

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Solution

The fourth proportional to 822,356.20, 1,233,620.70 and 261,260.20 is: 391,917.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,356.20 : 1,233,620.70 = 261,260.20 : x
  2. Step 2: Convert to fraction form
    822,356.20/1,233,620.70 = 261,260.20/x
  3. Step 3: Cross multiply
    822,356.20x = 1,233,620.70 × 261,260.20
  4. Step 4: Simplify right side
    822,356.20x = 322,295,990,806.14
  5. Step 5: Solve for x
    x = 322,295,990,806.14/822,356.20
  6. Step 6: Final answer
    x = 391,917.75

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1.5x scale

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.