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Finding the Fourth Proportional to 925,906.56, 1,388,970.96 and 326,744

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Solution

The fourth proportional to 925,906.56, 1,388,970.96 and 326,744 is: 490,155.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,906.56 : 1,388,970.96 = 326,744 : x
  2. Step 2: Convert to fraction form
    925,906.56/1,388,970.96 = 326,744/x
  3. Step 3: Cross multiply
    925,906.56x = 1,388,970.96 × 326,744
  4. Step 4: Simplify right side
    925,906.56x = 453,837,927,354.24
  5. Step 5: Solve for x
    x = 453,837,927,354.24/925,906.56
  6. Step 6: Final answer
    x = 490,155.21

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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.