Home / 285,531.63-394,033.59-170,815.11

Finding the Fourth Proportional to 285,531.63, 394,033.59 and 170,815.11

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Solution

The fourth proportional to 285,531.63, 394,033.59 and 170,815.11 is: 235,724.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,531.63 : 394,033.59 = 170,815.11 : x
  2. Step 2: Convert to fraction form
    285,531.63/394,033.59 = 170,815.11/x
  3. Step 3: Cross multiply
    285,531.63x = 394,033.59 × 170,815.11
  4. Step 4: Simplify right side
    285,531.63x = 67,306,891,019.54
  5. Step 5: Solve for x
    x = 67,306,891,019.54/285,531.63
  6. Step 6: Final answer
    x = 235,724.82

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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.