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Finding the Fourth Proportional to 297,920.60, 446,589.30 and 266,427.80

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Solution

The fourth proportional to 297,920.60, 446,589.30 and 266,427.80 is: 399,380.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,920.60 : 446,589.30 = 266,427.80 : x
  2. Step 2: Convert to fraction form
    297,920.60/446,589.30 = 266,427.80/x
  3. Step 3: Cross multiply
    297,920.60x = 446,589.30 × 266,427.80
  4. Step 4: Simplify right side
    297,920.60x = 118,983,804,702.54
  5. Step 5: Solve for x
    x = 118,983,804,702.54/297,920.60
  6. Step 6: Final answer
    x = 399,380.92

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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.