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Finding the Fourth Proportional to 572,998.64, 790,755.17 and 331,259.81

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Solution

The fourth proportional to 572,998.64, 790,755.17 and 331,259.81 is: 457,148.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,998.64 : 790,755.17 = 331,259.81 : x
  2. Step 2: Convert to fraction form
    572,998.64/790,755.17 = 331,259.81/x
  3. Step 3: Cross multiply
    572,998.64x = 790,755.17 × 331,259.81
  4. Step 4: Simplify right side
    572,998.64x = 261,945,401,760.64
  5. Step 5: Solve for x
    x = 261,945,401,760.64/572,998.64
  6. Step 6: Final answer
    x = 457,148.39

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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.