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Finding the Fourth Proportional to 572,414.49, 789,892.43 and 317,745.63

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Solution

The fourth proportional to 572,414.49, 789,892.43 and 317,745.63 is: 438,467.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,414.49 : 789,892.43 = 317,745.63 : x
  2. Step 2: Convert to fraction form
    572,414.49/789,892.43 = 317,745.63/x
  3. Step 3: Cross multiply
    572,414.49x = 789,892.43 × 317,745.63
  4. Step 4: Simplify right side
    572,414.49x = 250,984,866,213.85
  5. Step 5: Solve for x
    x = 250,984,866,213.85/572,414.49
  6. Step 6: Final answer
    x = 438,467.00

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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.