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Finding the Fourth Proportional to 283,955.51, 391,866 and 154,896.17

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Solution

The fourth proportional to 283,955.51, 391,866 and 154,896.17 is: 213,760.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,955.51 : 391,866 = 154,896.17 : x
  2. Step 2: Convert to fraction form
    283,955.51/391,866 = 154,896.17/x
  3. Step 3: Cross multiply
    283,955.51x = 391,866 × 154,896.17
  4. Step 4: Simplify right side
    283,955.51x = 60,698,542,553.22
  5. Step 5: Solve for x
    x = 60,698,542,553.22/283,955.51
  6. Step 6: Final answer
    x = 213,760.75

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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.