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Finding the Fourth Proportional to 609,339.26, 913,412.30 and 254,454.78

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Solution

The fourth proportional to 609,339.26, 913,412.30 and 254,454.78 is: 381,433.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,339.26 : 913,412.30 = 254,454.78 : x
  2. Step 2: Convert to fraction form
    609,339.26/913,412.30 = 254,454.78/x
  3. Step 3: Cross multiply
    609,339.26x = 913,412.30 × 254,454.78
  4. Step 4: Simplify right side
    609,339.26x = 232,422,125,845.79
  5. Step 5: Solve for x
    x = 232,422,125,845.79/609,339.26
  6. Step 6: Final answer
    x = 381,433.04

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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.