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Finding the Fourth Proportional to 347,383.82, 479,298.56 and 200,172.48

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Solution

The fourth proportional to 347,383.82, 479,298.56 and 200,172.48 is: 276,185.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,383.82 : 479,298.56 = 200,172.48 : x
  2. Step 2: Convert to fraction form
    347,383.82/479,298.56 = 200,172.48/x
  3. Step 3: Cross multiply
    347,383.82x = 479,298.56 × 200,172.48
  4. Step 4: Simplify right side
    347,383.82x = 95,942,381,415.63
  5. Step 5: Solve for x
    x = 95,942,381,415.63/347,383.82
  6. Step 6: Final answer
    x = 276,185.52

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1.5x scale

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.