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Finding the Fourth Proportional to 331,492.80, 496,072.80 and 226,516.80

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Solution

The fourth proportional to 331,492.80, 496,072.80 and 226,516.80 is: 338,978.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,492.80 : 496,072.80 = 226,516.80 : x
  2. Step 2: Convert to fraction form
    331,492.80/496,072.80 = 226,516.80/x
  3. Step 3: Cross multiply
    331,492.80x = 496,072.80 × 226,516.80
  4. Step 4: Simplify right side
    331,492.80x = 112,368,823,223.04
  5. Step 5: Solve for x
    x = 112,368,823,223.04/331,492.80
  6. Step 6: Final answer
    x = 338,978.17

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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.