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Finding the Fourth Proportional to 336,553.23, 464,492.78 and 221,813.22

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Solution

The fourth proportional to 336,553.23, 464,492.78 and 221,813.22 is: 306,134.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,553.23 : 464,492.78 = 221,813.22 : x
  2. Step 2: Convert to fraction form
    336,553.23/464,492.78 = 221,813.22/x
  3. Step 3: Cross multiply
    336,553.23x = 464,492.78 × 221,813.22
  4. Step 4: Simplify right side
    336,553.23x = 103,030,639,198.55
  5. Step 5: Solve for x
    x = 103,030,639,198.55/336,553.23
  6. Step 6: Final answer
    x = 306,134.75

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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.