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Finding the Fourth Proportional to 483,838.20, 726,141.18 and 259,364.52

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Solution

The fourth proportional to 483,838.20, 726,141.18 and 259,364.52 is: 389,252.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,838.20 : 726,141.18 = 259,364.52 : x
  2. Step 2: Convert to fraction form
    483,838.20/726,141.18 = 259,364.52/x
  3. Step 3: Cross multiply
    483,838.20x = 726,141.18 × 259,364.52
  4. Step 4: Simplify right side
    483,838.20x = 188,335,258,602.93
  5. Step 5: Solve for x
    x = 188,335,258,602.93/483,838.20
  6. Step 6: Final answer
    x = 389,252.56

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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.