Home / 811,771.54-1,217,665.48-362,515.16

Finding the Fourth Proportional to 811,771.54, 1,217,665.48 and 362,515.16

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Solution

The fourth proportional to 811,771.54, 1,217,665.48 and 362,515.16 is: 543,776.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,771.54 : 1,217,665.48 = 362,515.16 : x
  2. Step 2: Convert to fraction form
    811,771.54/1,217,665.48 = 362,515.16/x
  3. Step 3: Cross multiply
    811,771.54x = 1,217,665.48 × 362,515.16
  4. Step 4: Simplify right side
    811,771.54x = 441,422,196,308.68
  5. Step 5: Solve for x
    x = 441,422,196,308.68/811,771.54
  6. Step 6: Final answer
    x = 543,776.39

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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.