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Finding the Fourth Proportional to 375,679.56, 518,490.94 and 232,485.74

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Solution

The fourth proportional to 375,679.56, 518,490.94 and 232,485.74 is: 320,863.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,679.56 : 518,490.94 = 232,485.74 : x
  2. Step 2: Convert to fraction form
    375,679.56/518,490.94 = 232,485.74/x
  3. Step 3: Cross multiply
    375,679.56x = 518,490.94 × 232,485.74
  4. Step 4: Simplify right side
    375,679.56x = 120,541,749,869.20
  5. Step 5: Solve for x
    x = 120,541,749,869.20/375,679.56
  6. Step 6: Final answer
    x = 320,863.21

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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.