Home / 309,519.43-426,955.39-194,615.97

Finding the Fourth Proportional to 309,519.43, 426,955.39 and 194,615.97

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Solution

The fourth proportional to 309,519.43, 426,955.39 and 194,615.97 is: 268,455.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,519.43 : 426,955.39 = 194,615.97 : x
  2. Step 2: Convert to fraction form
    309,519.43/426,955.39 = 194,615.97/x
  3. Step 3: Cross multiply
    309,519.43x = 426,955.39 × 194,615.97
  4. Step 4: Simplify right side
    309,519.43x = 83,092,335,283.96
  5. Step 5: Solve for x
    x = 83,092,335,283.96/309,519.43
  6. Step 6: Final answer
    x = 268,455.96

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1.5x scale

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.