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Finding the Fourth Proportional to 571,765.94, 789,022.56 and 326,735.12

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Solution

The fourth proportional to 571,765.94, 789,022.56 and 326,735.12 is: 450,886.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,765.94 : 789,022.56 = 326,735.12 : x
  2. Step 2: Convert to fraction form
    571,765.94/789,022.56 = 326,735.12/x
  3. Step 3: Cross multiply
    571,765.94x = 789,022.56 × 326,735.12
  4. Step 4: Simplify right side
    571,765.94x = 257,801,380,824.31
  5. Step 5: Solve for x
    x = 257,801,380,824.31/571,765.94
  6. Step 6: Final answer
    x = 450,886.22

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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.