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Finding the Fourth Proportional to 422,443.04, 582,880.64 and 250,415.20

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Solution

The fourth proportional to 422,443.04, 582,880.64 and 250,415.20 is: 345,519.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,443.04 : 582,880.64 = 250,415.20 : x
  2. Step 2: Convert to fraction form
    422,443.04/582,880.64 = 250,415.20/x
  3. Step 3: Cross multiply
    422,443.04x = 582,880.64 × 250,415.20
  4. Step 4: Simplify right side
    422,443.04x = 145,962,172,041.73
  5. Step 5: Solve for x
    x = 145,962,172,041.73/422,443.04
  6. Step 6: Final answer
    x = 345,519.18

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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.