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Finding the Fourth Proportional to 622,825.07, 853,892.46 and 611,474.54

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Solution

The fourth proportional to 622,825.07, 853,892.46 and 611,474.54 is: 838,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,825.07 : 853,892.46 = 611,474.54 : x
  2. Step 2: Convert to fraction form
    622,825.07/853,892.46 = 611,474.54/x
  3. Step 3: Cross multiply
    622,825.07x = 853,892.46 × 611,474.54
  4. Step 4: Simplify right side
    622,825.07x = 522,133,494,918.51
  5. Step 5: Solve for x
    x = 522,133,494,918.51/622,825.07
  6. Step 6: Final answer
    x = 838,330.90

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.