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Finding the Fourth Proportional to 591,240.15, 815,912.19 and 336,591

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Solution

The fourth proportional to 591,240.15, 815,912.19 and 336,591 is: 464,496.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,240.15 : 815,912.19 = 336,591 : x
  2. Step 2: Convert to fraction form
    591,240.15/815,912.19 = 336,591/x
  3. Step 3: Cross multiply
    591,240.15x = 815,912.19 × 336,591
  4. Step 4: Simplify right side
    591,240.15x = 274,628,699,944.29
  5. Step 5: Solve for x
    x = 274,628,699,944.29/591,240.15
  6. Step 6: Final answer
    x = 464,496.03

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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.