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Finding the Fourth Proportional to 664,338.60, 996,410.70 and 190,974.60

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Solution

The fourth proportional to 664,338.60, 996,410.70 and 190,974.60 is: 286,433.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,338.60 : 996,410.70 = 190,974.60 : x
  2. Step 2: Convert to fraction form
    664,338.60/996,410.70 = 190,974.60/x
  3. Step 3: Cross multiply
    664,338.60x = 996,410.70 × 190,974.60
  4. Step 4: Simplify right side
    664,338.60x = 190,289,134,868.22
  5. Step 5: Solve for x
    x = 190,289,134,868.22/664,338.60
  6. Step 6: Final answer
    x = 286,433.96

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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.