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Finding the Fourth Proportional to 511,993.80, 706,817.09 and 374,017.79

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Solution

The fourth proportional to 511,993.80, 706,817.09 and 374,017.79 is: 516,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,993.80 : 706,817.09 = 374,017.79 : x
  2. Step 2: Convert to fraction form
    511,993.80/706,817.09 = 374,017.79/x
  3. Step 3: Cross multiply
    511,993.80x = 706,817.09 × 374,017.79
  4. Step 4: Simplify right side
    511,993.80x = 264,362,164,065.94
  5. Step 5: Solve for x
    x = 264,362,164,065.94/511,993.80
  6. Step 6: Final answer
    x = 516,338.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.