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Finding the Fourth Proportional to 295,919.80, 443,879.70 and 189,631.60

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Solution

The fourth proportional to 295,919.80, 443,879.70 and 189,631.60 is: 284,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,919.80 : 443,879.70 = 189,631.60 : x
  2. Step 2: Convert to fraction form
    295,919.80/443,879.70 = 189,631.60/x
  3. Step 3: Cross multiply
    295,919.80x = 443,879.70 × 189,631.60
  4. Step 4: Simplify right side
    295,919.80x = 84,173,617,718.52
  5. Step 5: Solve for x
    x = 84,173,617,718.52/295,919.80
  6. Step 6: Final answer
    x = 284,447.40

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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.