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Finding the Fourth Proportional to 303,921.44, 455,474.66 and 236,534.85

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Solution

The fourth proportional to 303,921.44, 455,474.66 and 236,534.85 is: 354,485.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,921.44 : 455,474.66 = 236,534.85 : x
  2. Step 2: Convert to fraction form
    303,921.44/455,474.66 = 236,534.85/x
  3. Step 3: Cross multiply
    303,921.44x = 455,474.66 × 236,534.85
  4. Step 4: Simplify right side
    303,921.44x = 107,735,630,381.90
  5. Step 5: Solve for x
    x = 107,735,630,381.90/303,921.44
  6. Step 6: Final answer
    x = 354,485.13

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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.