Home / 685,167.14-945,506.43-379,244.12

Finding the Fourth Proportional to 685,167.14, 945,506.43 and 379,244.12

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Solution

The fourth proportional to 685,167.14, 945,506.43 and 379,244.12 is: 523,343.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,167.14 : 945,506.43 = 379,244.12 : x
  2. Step 2: Convert to fraction form
    685,167.14/945,506.43 = 379,244.12/x
  3. Step 3: Cross multiply
    685,167.14x = 945,506.43 × 379,244.12
  4. Step 4: Simplify right side
    685,167.14x = 358,577,749,272.16
  5. Step 5: Solve for x
    x = 358,577,749,272.16/685,167.14
  6. Step 6: Final answer
    x = 523,343.47

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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.