Home / 775,870.20-1,070,540.45-453,517.94

Finding the Fourth Proportional to 775,870.20, 1,070,540.45 and 453,517.94

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Solution

The fourth proportional to 775,870.20, 1,070,540.45 and 453,517.94 is: 625,760.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,870.20 : 1,070,540.45 = 453,517.94 : x
  2. Step 2: Convert to fraction form
    775,870.20/1,070,540.45 = 453,517.94/x
  3. Step 3: Cross multiply
    775,870.20x = 1,070,540.45 × 453,517.94
  4. Step 4: Simplify right side
    775,870.20x = 485,509,299,979.43
  5. Step 5: Solve for x
    x = 485,509,299,979.43/775,870.20
  6. Step 6: Final answer
    x = 625,760.98

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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.