Home / 857,851.11-1,286,336.87-453,260.90

Finding the Fourth Proportional to 857,851.11, 1,286,336.87 and 453,260.90

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Solution

The fourth proportional to 857,851.11, 1,286,336.87 and 453,260.90 is: 679,658.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,851.11 : 1,286,336.87 = 453,260.90 : x
  2. Step 2: Convert to fraction form
    857,851.11/1,286,336.87 = 453,260.90/x
  3. Step 3: Cross multiply
    857,851.11x = 1,286,336.87 × 453,260.90
  4. Step 4: Simplify right side
    857,851.11x = 583,046,203,708.77
  5. Step 5: Solve for x
    x = 583,046,203,708.77/857,851.11
  6. Step 6: Final answer
    x = 679,658.97

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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.