Home / 1,112,213.09-1,667,197.89-438,033.89

Finding the Fourth Proportional to 1,112,213.09, 1,667,197.89 and 438,033.89

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Solution

The fourth proportional to 1,112,213.09, 1,667,197.89 and 438,033.89 is: 656,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,213.09 : 1,667,197.89 = 438,033.89 : x
  2. Step 2: Convert to fraction form
    1,112,213.09/1,667,197.89 = 438,033.89/x
  3. Step 3: Cross multiply
    1,112,213.09x = 1,667,197.89 × 438,033.89
  4. Step 4: Simplify right side
    1,112,213.09x = 730,289,181,324.49
  5. Step 5: Solve for x
    x = 730,289,181,324.49/1,112,213.09
  6. Step 6: Final answer
    x = 656,609.05

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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.