Home / 859,141.56-1,185,744.66-618,221.64

Finding the Fourth Proportional to 859,141.56, 1,185,744.66 and 618,221.64

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Solution

The fourth proportional to 859,141.56, 1,185,744.66 and 618,221.64 is: 853,238.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,141.56 : 1,185,744.66 = 618,221.64 : x
  2. Step 2: Convert to fraction form
    859,141.56/1,185,744.66 = 618,221.64/x
  3. Step 3: Cross multiply
    859,141.56x = 1,185,744.66 × 618,221.64
  4. Step 4: Simplify right side
    859,141.56x = 733,053,008,326.44
  5. Step 5: Solve for x
    x = 733,053,008,326.44/859,141.56
  6. Step 6: Final answer
    x = 853,238.91

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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.