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Finding the Fourth Proportional to 609,540.40, 914,339.40 and 189,110.80

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Solution

The fourth proportional to 609,540.40, 914,339.40 and 189,110.80 is: 283,675.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,540.40 : 914,339.40 = 189,110.80 : x
  2. Step 2: Convert to fraction form
    609,540.40/914,339.40 = 189,110.80/x
  3. Step 3: Cross multiply
    609,540.40x = 914,339.40 × 189,110.80
  4. Step 4: Simplify right side
    609,540.40x = 172,911,455,405.52
  5. Step 5: Solve for x
    x = 172,911,455,405.52/609,540.40
  6. Step 6: Final answer
    x = 283,675.14

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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.