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Finding the Fourth Proportional to 446,998.60, 670,238.70 and 166,544.20

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Solution

The fourth proportional to 446,998.60, 670,238.70 and 166,544.20 is: 249,719.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,998.60 : 670,238.70 = 166,544.20 : x
  2. Step 2: Convert to fraction form
    446,998.60/670,238.70 = 166,544.20/x
  3. Step 3: Cross multiply
    446,998.60x = 670,238.70 × 166,544.20
  4. Step 4: Simplify right side
    446,998.60x = 111,624,368,100.54
  5. Step 5: Solve for x
    x = 111,624,368,100.54/446,998.60
  6. Step 6: Final answer
    x = 249,719.73

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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.