Home / 918,893.44-1,268,186.92-516,485.44

Finding the Fourth Proportional to 918,893.44, 1,268,186.92 and 516,485.44

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Solution

The fourth proportional to 918,893.44, 1,268,186.92 and 516,485.44 is: 712,813.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,893.44 : 1,268,186.92 = 516,485.44 : x
  2. Step 2: Convert to fraction form
    918,893.44/1,268,186.92 = 516,485.44/x
  3. Step 3: Cross multiply
    918,893.44x = 1,268,186.92 × 516,485.44
  4. Step 4: Simplify right side
    918,893.44x = 655,000,079,378.45
  5. Step 5: Solve for x
    x = 655,000,079,378.45/918,893.44
  6. Step 6: Final answer
    x = 712,813.97

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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.