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Finding the Fourth Proportional to 325,471.20, 487,256.40 and 232,159.20

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Solution

The fourth proportional to 325,471.20, 487,256.40 and 232,159.20 is: 347,560.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,471.20 : 487,256.40 = 232,159.20 : x
  2. Step 2: Convert to fraction form
    325,471.20/487,256.40 = 232,159.20/x
  3. Step 3: Cross multiply
    325,471.20x = 487,256.40 × 232,159.20
  4. Step 4: Simplify right side
    325,471.20x = 113,121,056,018.88
  5. Step 5: Solve for x
    x = 113,121,056,018.88/325,471.20
  6. Step 6: Final answer
    x = 347,560.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.