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Finding the Fourth Proportional to 449,833.73, 620,368.50 and 373,231.57

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Solution

The fourth proportional to 449,833.73, 620,368.50 and 373,231.57 is: 514,725.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,833.73 : 620,368.50 = 373,231.57 : x
  2. Step 2: Convert to fraction form
    449,833.73/620,368.50 = 373,231.57/x
  3. Step 3: Cross multiply
    449,833.73x = 620,368.50 × 373,231.57
  4. Step 4: Simplify right side
    449,833.73x = 231,541,109,233.55
  5. Step 5: Solve for x
    x = 231,541,109,233.55/449,833.73
  6. Step 6: Final answer
    x = 514,725.98

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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.