Home / 389,779.26-538,059.46-236,866.65

Finding the Fourth Proportional to 389,779.26, 538,059.46 and 236,866.65

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Solution

The fourth proportional to 389,779.26, 538,059.46 and 236,866.65 is: 326,975.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,779.26 : 538,059.46 = 236,866.65 : x
  2. Step 2: Convert to fraction form
    389,779.26/538,059.46 = 236,866.65/x
  3. Step 3: Cross multiply
    389,779.26x = 538,059.46 × 236,866.65
  4. Step 4: Simplify right side
    389,779.26x = 127,448,339,625.24
  5. Step 5: Solve for x
    x = 127,448,339,625.24/389,779.26
  6. Step 6: Final answer
    x = 326,975.69

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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.