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Finding the Fourth Proportional to 417,687.15, 576,408.77 and 226,700.58

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Solution

The fourth proportional to 417,687.15, 576,408.77 and 226,700.58 is: 312,847.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,687.15 : 576,408.77 = 226,700.58 : x
  2. Step 2: Convert to fraction form
    417,687.15/576,408.77 = 226,700.58/x
  3. Step 3: Cross multiply
    417,687.15x = 576,408.77 × 226,700.58
  4. Step 4: Simplify right side
    417,687.15x = 130,672,201,342.58
  5. Step 5: Solve for x
    x = 130,672,201,342.58/417,687.15
  6. Step 6: Final answer
    x = 312,847.07

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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.