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Finding the Fourth Proportional to 336,856.98, 505,032.72 and 203,709.96

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Solution

The fourth proportional to 336,856.98, 505,032.72 and 203,709.96 is: 305,412.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,856.98 : 505,032.72 = 203,709.96 : x
  2. Step 2: Convert to fraction form
    336,856.98/505,032.72 = 203,709.96/x
  3. Step 3: Cross multiply
    336,856.98x = 505,032.72 × 203,709.96
  4. Step 4: Simplify right side
    336,856.98x = 102,880,195,189.89
  5. Step 5: Solve for x
    x = 102,880,195,189.89/336,856.98
  6. Step 6: Final answer
    x = 305,412.09

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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.