Home / 260,922.51-391,377.59-83,431.07

Finding the Fourth Proportional to 260,922.51, 391,377.59 and 83,431.07

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Solution

The fourth proportional to 260,922.51, 391,377.59 and 83,431.07 is: 125,144.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,922.51 : 391,377.59 = 83,431.07 : x
  2. Step 2: Convert to fraction form
    260,922.51/391,377.59 = 83,431.07/x
  3. Step 3: Cross multiply
    260,922.51x = 391,377.59 × 83,431.07
  4. Step 4: Simplify right side
    260,922.51x = 32,653,048,733.68
  5. Step 5: Solve for x
    x = 32,653,048,733.68/260,922.51
  6. Step 6: Final answer
    x = 125,144.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.