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Finding the Fourth Proportional to 399,082.26, 550,804.50 and 237,947.52

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Solution

The fourth proportional to 399,082.26, 550,804.50 and 237,947.52 is: 328,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,082.26 : 550,804.50 = 237,947.52 : x
  2. Step 2: Convert to fraction form
    399,082.26/550,804.50 = 237,947.52/x
  3. Step 3: Cross multiply
    399,082.26x = 550,804.50 × 237,947.52
  4. Step 4: Simplify right side
    399,082.26x = 131,062,564,779.84
  5. Step 5: Solve for x
    x = 131,062,564,779.84/399,082.26
  6. Step 6: Final answer
    x = 328,409.90

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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.