Home / 821,768.09-1,134,018.20-459,194.92

Finding the Fourth Proportional to 821,768.09, 1,134,018.20 and 459,194.92

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Solution

The fourth proportional to 821,768.09, 1,134,018.20 and 459,194.92 is: 633,676.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,768.09 : 1,134,018.20 = 459,194.92 : x
  2. Step 2: Convert to fraction form
    821,768.09/1,134,018.20 = 459,194.92/x
  3. Step 3: Cross multiply
    821,768.09x = 1,134,018.20 × 459,194.92
  4. Step 4: Simplify right side
    821,768.09x = 520,735,398,736.37
  5. Step 5: Solve for x
    x = 520,735,398,736.37/821,768.09
  6. Step 6: Final answer
    x = 633,676.83

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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.