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Finding the Fourth Proportional to 451,063.28, 622,108.14 and 289,934.84

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Solution

The fourth proportional to 451,063.28, 622,108.14 and 289,934.84 is: 399,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,063.28 : 622,108.14 = 289,934.84 : x
  2. Step 2: Convert to fraction form
    451,063.28/622,108.14 = 289,934.84/x
  3. Step 3: Cross multiply
    451,063.28x = 622,108.14 × 289,934.84
  4. Step 4: Simplify right side
    451,063.28x = 180,370,824,033.60
  5. Step 5: Solve for x
    x = 180,370,824,033.60/451,063.28
  6. Step 6: Final answer
    x = 399,879.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.