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Finding the Fourth Proportional to 448,016.36, 671,791.22 and 211,295.48

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Solution

The fourth proportional to 448,016.36, 671,791.22 and 211,295.48 is: 316,833.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,016.36 : 671,791.22 = 211,295.48 : x
  2. Step 2: Convert to fraction form
    448,016.36/671,791.22 = 211,295.48/x
  3. Step 3: Cross multiply
    448,016.36x = 671,791.22 × 211,295.48
  4. Step 4: Simplify right side
    448,016.36x = 141,946,448,289.69
  5. Step 5: Solve for x
    x = 141,946,448,289.69/448,016.36
  6. Step 6: Final answer
    x = 316,833.18

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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.