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Finding the Fourth Proportional to 456,660.94, 684,622.28 and 190,620.59

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Solution

The fourth proportional to 456,660.94, 684,622.28 and 190,620.59 is: 285,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,660.94 : 684,622.28 = 190,620.59 : x
  2. Step 2: Convert to fraction form
    456,660.94/684,622.28 = 190,620.59/x
  3. Step 3: Cross multiply
    456,660.94x = 684,622.28 × 190,620.59
  4. Step 4: Simplify right side
    456,660.94x = 130,503,102,772.95
  5. Step 5: Solve for x
    x = 130,503,102,772.95/456,660.94
  6. Step 6: Final answer
    x = 285,776.80

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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.