Home / 821,606.18-1,233,424.22-389,736.59

Finding the Fourth Proportional to 821,606.18, 1,233,424.22 and 389,736.59

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Solution

The fourth proportional to 821,606.18, 1,233,424.22 and 389,736.59 is: 585,086.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,606.18 : 1,233,424.22 = 389,736.59 : x
  2. Step 2: Convert to fraction form
    821,606.18/1,233,424.22 = 389,736.59/x
  3. Step 3: Cross multiply
    821,606.18x = 1,233,424.22 × 389,736.59
  4. Step 4: Simplify right side
    821,606.18x = 480,710,541,410.41
  5. Step 5: Solve for x
    x = 480,710,541,410.41/821,606.18
  6. Step 6: Final answer
    x = 585,086.33

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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.