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Finding the Fourth Proportional to 417,832.72, 576,644.84 and 236,576.60

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Solution

The fourth proportional to 417,832.72, 576,644.84 and 236,576.60 is: 326,495.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,832.72 : 576,644.84 = 236,576.60 : x
  2. Step 2: Convert to fraction form
    417,832.72/576,644.84 = 236,576.60/x
  3. Step 3: Cross multiply
    417,832.72x = 576,644.84 × 236,576.60
  4. Step 4: Simplify right side
    417,832.72x = 136,420,675,654.74
  5. Step 5: Solve for x
    x = 136,420,675,654.74/417,832.72
  6. Step 6: Final answer
    x = 326,495.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.