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Finding the Fourth Proportional to 484,225.60, 726,079.20 and 203,425.60

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Solution

The fourth proportional to 484,225.60, 726,079.20 and 203,425.60 is: 305,029.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,225.60 : 726,079.20 = 203,425.60 : x
  2. Step 2: Convert to fraction form
    484,225.60/726,079.20 = 203,425.60/x
  3. Step 3: Cross multiply
    484,225.60x = 726,079.20 × 203,425.60
  4. Step 4: Simplify right side
    484,225.60x = 147,703,096,907.52
  5. Step 5: Solve for x
    x = 147,703,096,907.52/484,225.60
  6. Step 6: Final answer
    x = 305,029.51

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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.