Home / 677,259.20-1,016,277.60-256,836.80

Finding the Fourth Proportional to 677,259.20, 1,016,277.60 and 256,836.80

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Solution

The fourth proportional to 677,259.20, 1,016,277.60 and 256,836.80 is: 385,402.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,259.20 : 1,016,277.60 = 256,836.80 : x
  2. Step 2: Convert to fraction form
    677,259.20/1,016,277.60 = 256,836.80/x
  3. Step 3: Cross multiply
    677,259.20x = 1,016,277.60 × 256,836.80
  4. Step 4: Simplify right side
    677,259.20x = 261,017,486,695.68
  5. Step 5: Solve for x
    x = 261,017,486,695.68/677,259.20
  6. Step 6: Final answer
    x = 385,402.64

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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.