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Finding the Fourth Proportional to 447,272.32, 670,908.36 and 306,604.48

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Solution

The fourth proportional to 447,272.32, 670,908.36 and 306,604.48 is: 459,906.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,272.32 : 670,908.36 = 306,604.48 : x
  2. Step 2: Convert to fraction form
    447,272.32/670,908.36 = 306,604.48/x
  3. Step 3: Cross multiply
    447,272.32x = 670,908.36 × 306,604.48
  4. Step 4: Simplify right side
    447,272.32x = 205,703,508,845.45
  5. Step 5: Solve for x
    x = 205,703,508,845.45/447,272.32
  6. Step 6: Final answer
    x = 459,906.64

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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.