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Finding the Fourth Proportional to 603,611.20, 904,104.60 and 366,540.40

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Solution

The fourth proportional to 603,611.20, 904,104.60 and 366,540.40 is: 549,013.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,611.20 : 904,104.60 = 366,540.40 : x
  2. Step 2: Convert to fraction form
    603,611.20/904,104.60 = 366,540.40/x
  3. Step 3: Cross multiply
    603,611.20x = 904,104.60 × 366,540.40
  4. Step 4: Simplify right side
    603,611.20x = 331,390,861,725.84
  5. Step 5: Solve for x
    x = 331,390,861,725.84/603,611.20
  6. Step 6: Final answer
    x = 549,013.77

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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.