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Finding the Fourth Proportional to 609,183.60, 913,861.80 and 188,415.60

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Solution

The fourth proportional to 609,183.60, 913,861.80 and 188,415.60 is: 282,650.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,183.60 : 913,861.80 = 188,415.60 : x
  2. Step 2: Convert to fraction form
    609,183.60/913,861.80 = 188,415.60/x
  3. Step 3: Cross multiply
    609,183.60x = 913,861.80 × 188,415.60
  4. Step 4: Simplify right side
    609,183.60x = 172,185,819,364.08
  5. Step 5: Solve for x
    x = 172,185,819,364.08/609,183.60
  6. Step 6: Final answer
    x = 282,650.12

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1.5x scale

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.