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Finding the Fourth Proportional to 414,926.20, 622,389.30 and 370,311.40

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Solution

The fourth proportional to 414,926.20, 622,389.30 and 370,311.40 is: 555,467.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,926.20 : 622,389.30 = 370,311.40 : x
  2. Step 2: Convert to fraction form
    414,926.20/622,389.30 = 370,311.40/x
  3. Step 3: Cross multiply
    414,926.20x = 622,389.30 × 370,311.40
  4. Step 4: Simplify right side
    414,926.20x = 230,477,853,028.02
  5. Step 5: Solve for x
    x = 230,477,853,028.02/414,926.20
  6. Step 6: Final answer
    x = 555,467.10

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Similar ratio
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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.