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Finding the Fourth Proportional to 362,679.28, 500,543.44 and 219,440.50

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Solution

The fourth proportional to 362,679.28, 500,543.44 and 219,440.50 is: 302,855.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,679.28 : 500,543.44 = 219,440.50 : x
  2. Step 2: Convert to fraction form
    362,679.28/500,543.44 = 219,440.50/x
  3. Step 3: Cross multiply
    362,679.28x = 500,543.44 × 219,440.50
  4. Step 4: Simplify right side
    362,679.28x = 109,839,502,745.32
  5. Step 5: Solve for x
    x = 109,839,502,745.32/362,679.28
  6. Step 6: Final answer
    x = 302,855.74

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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.