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Finding the Fourth Proportional to 415,311.36, 622,967.04 and 237,694.56

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Solution

The fourth proportional to 415,311.36, 622,967.04 and 237,694.56 is: 356,541.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,311.36 : 622,967.04 = 237,694.56 : x
  2. Step 2: Convert to fraction form
    415,311.36/622,967.04 = 237,694.56/x
  3. Step 3: Cross multiply
    415,311.36x = 622,967.04 × 237,694.56
  4. Step 4: Simplify right side
    415,311.36x = 148,075,876,467.30
  5. Step 5: Solve for x
    x = 148,075,876,467.30/415,311.36
  6. Step 6: Final answer
    x = 356,541.84

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Double scale
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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.