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Finding the Fourth Proportional to 603,903.40, 905,855.10 and 248,734.60

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Solution

The fourth proportional to 603,903.40, 905,855.10 and 248,734.60 is: 373,101.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,903.40 : 905,855.10 = 248,734.60 : x
  2. Step 2: Convert to fraction form
    603,903.40/905,855.10 = 248,734.60/x
  3. Step 3: Cross multiply
    603,903.40x = 905,855.10 × 248,734.60
  4. Step 4: Simplify right side
    603,903.40x = 225,317,505,956.46
  5. Step 5: Solve for x
    x = 225,317,505,956.46/603,903.40
  6. Step 6: Final answer
    x = 373,101.90

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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.