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Finding the Fourth Proportional to 293,884.70, 439,905.45 and 210,940.70

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Solution

The fourth proportional to 293,884.70, 439,905.45 and 210,940.70 is: 315,749.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,884.70 : 439,905.45 = 210,940.70 : x
  2. Step 2: Convert to fraction form
    293,884.70/439,905.45 = 210,940.70/x
  3. Step 3: Cross multiply
    293,884.70x = 439,905.45 × 210,940.70
  4. Step 4: Simplify right side
    293,884.70x = 92,793,963,556.82
  5. Step 5: Solve for x
    x = 92,793,963,556.82/293,884.70
  6. Step 6: Final answer
    x = 315,749.56

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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.