Home / 986,249.43-1,479,416.34-387,340.43

Finding the Fourth Proportional to 986,249.43, 1,479,416.34 and 387,340.43

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Solution

The fourth proportional to 986,249.43, 1,479,416.34 and 387,340.43 is: 581,027.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,249.43 : 1,479,416.34 = 387,340.43 : x
  2. Step 2: Convert to fraction form
    986,249.43/1,479,416.34 = 387,340.43/x
  3. Step 3: Cross multiply
    986,249.43x = 1,479,416.34 × 387,340.43
  4. Step 4: Simplify right side
    986,249.43x = 573,037,751,950.84
  5. Step 5: Solve for x
    x = 573,037,751,950.84/986,249.43
  6. Step 6: Final answer
    x = 581,027.21

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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.