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Finding the Fourth Proportional to 417,687.14, 576,408.78 and 226,700.60

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Solution

The fourth proportional to 417,687.14, 576,408.78 and 226,700.60 is: 312,847.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,687.14 : 576,408.78 = 226,700.60 : x
  2. Step 2: Convert to fraction form
    417,687.14/576,408.78 = 226,700.60/x
  3. Step 3: Cross multiply
    417,687.14x = 576,408.78 × 226,700.60
  4. Step 4: Simplify right side
    417,687.14x = 130,672,213,389.22
  5. Step 5: Solve for x
    x = 130,672,213,389.22/417,687.14
  6. Step 6: Final answer
    x = 312,847.11

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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.