Home / 260,680.96-391,016.64-83,186.56

Finding the Fourth Proportional to 260,680.96, 391,016.64 and 83,186.56

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Solution

The fourth proportional to 260,680.96, 391,016.64 and 83,186.56 is: 124,778.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,680.96 : 391,016.64 = 83,186.56 : x
  2. Step 2: Convert to fraction form
    260,680.96/391,016.64 = 83,186.56/x
  3. Step 3: Cross multiply
    260,680.96x = 391,016.64 × 83,186.56
  4. Step 4: Simplify right side
    260,680.96x = 32,527,329,184.36
  5. Step 5: Solve for x
    x = 32,527,329,184.36/260,680.96
  6. Step 6: Final answer
    x = 124,778.31

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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.