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Finding the Fourth Proportional to 360,919.60, 541,768.20 and 203,455.60

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Solution

The fourth proportional to 360,919.60, 541,768.20 and 203,455.60 is: 305,402.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,919.60 : 541,768.20 = 203,455.60 : x
  2. Step 2: Convert to fraction form
    360,919.60/541,768.20 = 203,455.60/x
  3. Step 3: Cross multiply
    360,919.60x = 541,768.20 × 203,455.60
  4. Step 4: Simplify right side
    360,919.60x = 110,225,774,191.92
  5. Step 5: Solve for x
    x = 110,225,774,191.92/360,919.60
  6. Step 6: Final answer
    x = 305,402.57

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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.