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Finding the Fourth Proportional to 414,052.20, 620,640.90 and 236,176.20

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Solution

The fourth proportional to 414,052.20, 620,640.90 and 236,176.20 is: 354,014.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,052.20 : 620,640.90 = 236,176.20 : x
  2. Step 2: Convert to fraction form
    414,052.20/620,640.90 = 236,176.20/x
  3. Step 3: Cross multiply
    414,052.20x = 620,640.90 × 236,176.20
  4. Step 4: Simplify right side
    414,052.20x = 146,580,609,326.58
  5. Step 5: Solve for x
    x = 146,580,609,326.58/414,052.20
  6. Step 6: Final answer
    x = 354,014.81

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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.