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Finding the Fourth Proportional to 343,399.60, 474,014.16 and 234,425.98

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Solution

The fourth proportional to 343,399.60, 474,014.16 and 234,425.98 is: 323,591.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,399.60 : 474,014.16 = 234,425.98 : x
  2. Step 2: Convert to fraction form
    343,399.60/474,014.16 = 234,425.98/x
  3. Step 3: Cross multiply
    343,399.60x = 474,014.16 × 234,425.98
  4. Step 4: Simplify right side
    343,399.60x = 111,121,233,991.88
  5. Step 5: Solve for x
    x = 111,121,233,991.88/343,399.60
  6. Step 6: Final answer
    x = 323,591.62

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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.