Home / 393,528.85-543,019.94-223,766.62

Finding the Fourth Proportional to 393,528.85, 543,019.94 and 223,766.62

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Solution

The fourth proportional to 393,528.85, 543,019.94 and 223,766.62 is: 308,769.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,528.85 : 543,019.94 = 223,766.62 : x
  2. Step 2: Convert to fraction form
    393,528.85/543,019.94 = 223,766.62/x
  3. Step 3: Cross multiply
    393,528.85x = 543,019.94 × 223,766.62
  4. Step 4: Simplify right side
    393,528.85x = 121,509,733,851.30
  5. Step 5: Solve for x
    x = 121,509,733,851.30/393,528.85
  6. Step 6: Final answer
    x = 308,769.57

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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.