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Finding the Fourth Proportional to 367,283.28, 550,929.78 and 209,323.56

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Solution

The fourth proportional to 367,283.28, 550,929.78 and 209,323.56 is: 313,988.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,283.28 : 550,929.78 = 209,323.56 : x
  2. Step 2: Convert to fraction form
    367,283.28/550,929.78 = 209,323.56/x
  3. Step 3: Cross multiply
    367,283.28x = 550,929.78 × 209,323.56
  4. Step 4: Simplify right side
    367,283.28x = 115,322,582,859.62
  5. Step 5: Solve for x
    x = 115,322,582,859.62/367,283.28
  6. Step 6: Final answer
    x = 313,988.11

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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.