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Finding the Fourth Proportional to 907,665.28, 1,361,497.92 and 242,800

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Solution

The fourth proportional to 907,665.28, 1,361,497.92 and 242,800 is: 364,200

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,665.28 : 1,361,497.92 = 242,800 : x
  2. Step 2: Convert to fraction form
    907,665.28/1,361,497.92 = 242,800/x
  3. Step 3: Cross multiply
    907,665.28x = 1,361,497.92 × 242,800
  4. Step 4: Simplify right side
    907,665.28x = 330,571,694,976
  5. Step 5: Solve for x
    x = 330,571,694,976/907,665.28
  6. Step 6: Final answer
    x = 364,200

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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.