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Finding the Fourth Proportional to 572,969.28, 790,651.32 and 331,267.43

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Solution

The fourth proportional to 572,969.28, 790,651.32 and 331,267.43 is: 457,122.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,969.28 : 790,651.32 = 331,267.43 : x
  2. Step 2: Convert to fraction form
    572,969.28/790,651.32 = 331,267.43/x
  3. Step 3: Cross multiply
    572,969.28x = 790,651.32 × 331,267.43
  4. Step 4: Simplify right side
    572,969.28x = 261,917,030,802.51
  5. Step 5: Solve for x
    x = 261,917,030,802.51/572,969.28
  6. Step 6: Final answer
    x = 457,122.29

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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.