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Finding the Fourth Proportional to 303,354.80, 455,129.40 and 203,627.60

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Solution

The fourth proportional to 303,354.80, 455,129.40 and 203,627.60 is: 305,506.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,354.80 : 455,129.40 = 203,627.60 : x
  2. Step 2: Convert to fraction form
    303,354.80/455,129.40 = 203,627.60/x
  3. Step 3: Cross multiply
    303,354.80x = 455,129.40 × 203,627.60
  4. Step 4: Simplify right side
    303,354.80x = 92,676,907,411.44
  5. Step 5: Solve for x
    x = 92,676,907,411.44/303,354.80
  6. Step 6: Final answer
    x = 305,506.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.