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Finding the Fourth Proportional to 499,858.56, 749,790.72 and 204,370.56

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Solution

The fourth proportional to 499,858.56, 749,790.72 and 204,370.56 is: 306,557.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,858.56 : 749,790.72 = 204,370.56 : x
  2. Step 2: Convert to fraction form
    499,858.56/749,790.72 = 204,370.56/x
  3. Step 3: Cross multiply
    499,858.56x = 749,790.72 × 204,370.56
  4. Step 4: Simplify right side
    499,858.56x = 153,235,149,329.20
  5. Step 5: Solve for x
    x = 153,235,149,329.20/499,858.56
  6. Step 6: Final answer
    x = 306,557.02

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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.