Home / 685,186.91-945,533.82-379,263.88

Finding the Fourth Proportional to 685,186.91, 945,533.82 and 379,263.88

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Solution

The fourth proportional to 685,186.91, 945,533.82 and 379,263.88 is: 523,370.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,186.91 : 945,533.82 = 379,263.88 : x
  2. Step 2: Convert to fraction form
    685,186.91/945,533.82 = 379,263.88/x
  3. Step 3: Cross multiply
    685,186.91x = 945,533.82 × 379,263.88
  4. Step 4: Simplify right side
    685,186.91x = 358,606,825,244.42
  5. Step 5: Solve for x
    x = 358,606,825,244.42/685,186.91
  6. Step 6: Final answer
    x = 523,370.81

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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.