Home / 861,506.68-1,188,852.78-479,523.64

Finding the Fourth Proportional to 861,506.68, 1,188,852.78 and 479,523.64

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Solution

The fourth proportional to 861,506.68, 1,188,852.78 and 479,523.64 is: 661,727.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,506.68 : 1,188,852.78 = 479,523.64 : x
  2. Step 2: Convert to fraction form
    861,506.68/1,188,852.78 = 479,523.64/x
  3. Step 3: Cross multiply
    861,506.68x = 1,188,852.78 × 479,523.64
  4. Step 4: Simplify right side
    861,506.68x = 570,083,012,489.72
  5. Step 5: Solve for x
    x = 570,083,012,489.72/861,506.68
  6. Step 6: Final answer
    x = 661,727.91

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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.