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Finding the Fourth Proportional to 307,729.40, 461,723.70 and 167,588.60

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Solution

The fourth proportional to 307,729.40, 461,723.70 and 167,588.60 is: 251,453.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,729.40 : 461,723.70 = 167,588.60 : x
  2. Step 2: Convert to fraction form
    307,729.40/461,723.70 = 167,588.60/x
  3. Step 3: Cross multiply
    307,729.40x = 461,723.70 × 167,588.60
  4. Step 4: Simplify right side
    307,729.40x = 77,379,628,469.82
  5. Step 5: Solve for x
    x = 77,379,628,469.82/307,729.40
  6. Step 6: Final answer
    x = 251,453.48

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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.