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Finding the Fourth Proportional to 275,861.63, 411,378.38 and 273,339.24

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Solution

The fourth proportional to 275,861.63, 411,378.38 and 273,339.24 is: 407,616.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,861.63 : 411,378.38 = 273,339.24 : x
  2. Step 2: Convert to fraction form
    275,861.63/411,378.38 = 273,339.24/x
  3. Step 3: Cross multiply
    275,861.63x = 411,378.38 × 273,339.24
  4. Step 4: Simplify right side
    275,861.63x = 112,445,852,374.94
  5. Step 5: Solve for x
    x = 112,445,852,374.94/275,861.63
  6. Step 6: Final answer
    x = 407,616.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.