Home / 393,735.33-543,350.03-223,969.05

Finding the Fourth Proportional to 393,735.33, 543,350.03 and 223,969.05

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Solution

The fourth proportional to 393,735.33, 543,350.03 and 223,969.05 is: 309,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,735.33 : 543,350.03 = 223,969.05 : x
  2. Step 2: Convert to fraction form
    393,735.33/543,350.03 = 223,969.05/x
  3. Step 3: Cross multiply
    393,735.33x = 543,350.03 × 223,969.05
  4. Step 4: Simplify right side
    393,735.33x = 121,693,588,916.73
  5. Step 5: Solve for x
    x = 121,693,588,916.73/393,735.33
  6. Step 6: Final answer
    x = 309,074.60

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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.