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Finding the Fourth Proportional to 449,233.70, 620,045.89 and 296,299.22

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Solution

The fourth proportional to 449,233.70, 620,045.89 and 296,299.22 is: 408,961.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,233.70 : 620,045.89 = 296,299.22 : x
  2. Step 2: Convert to fraction form
    449,233.70/620,045.89 = 296,299.22/x
  3. Step 3: Cross multiply
    449,233.70x = 620,045.89 × 296,299.22
  4. Step 4: Simplify right side
    449,233.70x = 183,719,109,730.23
  5. Step 5: Solve for x
    x = 183,719,109,730.23/449,233.70
  6. Step 6: Final answer
    x = 408,961.11

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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.