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Finding the Fourth Proportional to 445,496.30, 668,114.85 and 245,912.30

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Solution

The fourth proportional to 445,496.30, 668,114.85 and 245,912.30 is: 368,796.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,496.30 : 668,114.85 = 245,912.30 : x
  2. Step 2: Convert to fraction form
    445,496.30/668,114.85 = 245,912.30/x
  3. Step 3: Cross multiply
    445,496.30x = 668,114.85 × 245,912.30
  4. Step 4: Simplify right side
    445,496.30x = 164,297,659,427.66
  5. Step 5: Solve for x
    x = 164,297,659,427.66/445,496.30
  6. Step 6: Final answer
    x = 368,796.91

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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.