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Finding the Fourth Proportional to 417,540.96, 625,753.08 and 217,441.26

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Solution

The fourth proportional to 417,540.96, 625,753.08 and 217,441.26 is: 325,871.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,540.96 : 625,753.08 = 217,441.26 : x
  2. Step 2: Convert to fraction form
    417,540.96/625,753.08 = 217,441.26/x
  3. Step 3: Cross multiply
    417,540.96x = 625,753.08 × 217,441.26
  4. Step 4: Simplify right side
    417,540.96x = 136,064,538,164.08
  5. Step 5: Solve for x
    x = 136,064,538,164.08/417,540.96
  6. Step 6: Final answer
    x = 325,871.11

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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.