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Finding the Fourth Proportional to 425,846.59, 639,190.20 and 226,166.41

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Solution

The fourth proportional to 425,846.59, 639,190.20 and 226,166.41 is: 339,472.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,846.59 : 639,190.20 = 226,166.41 : x
  2. Step 2: Convert to fraction form
    425,846.59/639,190.20 = 226,166.41/x
  3. Step 3: Cross multiply
    425,846.59x = 639,190.20 × 226,166.41
  4. Step 4: Simplify right side
    425,846.59x = 144,563,352,841.18
  5. Step 5: Solve for x
    x = 144,563,352,841.18/425,846.59
  6. Step 6: Final answer
    x = 339,472.84

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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.