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Finding the Fourth Proportional to 610,732.80, 914,716.80 and 361,900.80

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Solution

The fourth proportional to 610,732.80, 914,716.80 and 361,900.80 is: 542,032.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,732.80 : 914,716.80 = 361,900.80 : x
  2. Step 2: Convert to fraction form
    610,732.80/914,716.80 = 361,900.80/x
  3. Step 3: Cross multiply
    610,732.80x = 914,716.80 × 361,900.80
  4. Step 4: Simplify right side
    610,732.80x = 331,036,741,693.44
  5. Step 5: Solve for x
    x = 331,036,741,693.44/610,732.80
  6. Step 6: Final answer
    x = 542,032.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.