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Finding the Fourth Proportional to 386,679.36, 533,956.48 and 241,732.90

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Solution

The fourth proportional to 386,679.36, 533,956.48 and 241,732.90 is: 333,803.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,679.36 : 533,956.48 = 241,732.90 : x
  2. Step 2: Convert to fraction form
    386,679.36/533,956.48 = 241,732.90/x
  3. Step 3: Cross multiply
    386,679.36x = 533,956.48 × 241,732.90
  4. Step 4: Simplify right side
    386,679.36x = 129,074,846,444.97
  5. Step 5: Solve for x
    x = 129,074,846,444.97/386,679.36
  6. Step 6: Final answer
    x = 333,803.30

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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.