Home / 823,149.73-1,135,723.71-565,105.60

Finding the Fourth Proportional to 823,149.73, 1,135,723.71 and 565,105.60

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Solution

The fourth proportional to 823,149.73, 1,135,723.71 and 565,105.60 is: 779,692.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,149.73 : 1,135,723.71 = 565,105.60 : x
  2. Step 2: Convert to fraction form
    823,149.73/1,135,723.71 = 565,105.60/x
  3. Step 3: Cross multiply
    823,149.73x = 1,135,723.71 × 565,105.60
  4. Step 4: Simplify right side
    823,149.73x = 641,803,828,573.78
  5. Step 5: Solve for x
    x = 641,803,828,573.78/823,149.73
  6. Step 6: Final answer
    x = 779,692.69

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.