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Finding the Fourth Proportional to 343,986.44, 474,692.22 and 191,019.92

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Solution

The fourth proportional to 343,986.44, 474,692.22 and 191,019.92 is: 263,602.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,986.44 : 474,692.22 = 191,019.92 : x
  2. Step 2: Convert to fraction form
    343,986.44/474,692.22 = 191,019.92/x
  3. Step 3: Cross multiply
    343,986.44x = 474,692.22 × 191,019.92
  4. Step 4: Simplify right side
    343,986.44x = 90,675,669,889.02
  5. Step 5: Solve for x
    x = 90,675,669,889.02/343,986.44
  6. Step 6: Final answer
    x = 263,602.45

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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.