Home / 809,840.94-1,214,636.57-270,106.65

Finding the Fourth Proportional to 809,840.94, 1,214,636.57 and 270,106.65

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Solution

The fourth proportional to 809,840.94, 1,214,636.57 and 270,106.65 is: 405,118.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,840.94 : 1,214,636.57 = 270,106.65 : x
  2. Step 2: Convert to fraction form
    809,840.94/1,214,636.57 = 270,106.65/x
  3. Step 3: Cross multiply
    809,840.94x = 1,214,636.57 × 270,106.65
  4. Step 4: Simplify right side
    809,840.94x = 328,081,413,539.66
  5. Step 5: Solve for x
    x = 328,081,413,539.66/809,840.94
  6. Step 6: Final answer
    x = 405,118.34

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Double scale
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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.