Home / 677,585.40-1,016,781.30-256,903.80

Finding the Fourth Proportional to 677,585.40, 1,016,781.30 and 256,903.80

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Solution

The fourth proportional to 677,585.40, 1,016,781.30 and 256,903.80 is: 385,508.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,585.40 : 1,016,781.30 = 256,903.80 : x
  2. Step 2: Convert to fraction form
    677,585.40/1,016,781.30 = 256,903.80/x
  3. Step 3: Cross multiply
    677,585.40x = 1,016,781.30 × 256,903.80
  4. Step 4: Simplify right side
    677,585.40x = 261,214,979,738.94
  5. Step 5: Solve for x
    x = 261,214,979,738.94/677,585.40
  6. Step 6: Final answer
    x = 385,508.57

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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.