Home / 919,183.66-1,268,473.39-516,775.66

Finding the Fourth Proportional to 919,183.66, 1,268,473.39 and 516,775.66

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Solution

The fourth proportional to 919,183.66, 1,268,473.39 and 516,775.66 is: 713,150.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,183.66 : 1,268,473.39 = 516,775.66 : x
  2. Step 2: Convert to fraction form
    919,183.66/1,268,473.39 = 516,775.66/x
  3. Step 3: Cross multiply
    919,183.66x = 1,268,473.39 × 516,775.66
  4. Step 4: Simplify right side
    919,183.66x = 655,516,173,309.69
  5. Step 5: Solve for x
    x = 655,516,173,309.69/919,183.66
  6. Step 6: Final answer
    x = 713,150.38

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Double scale
Find fourth proportional to 919,184.66, 1,268,474.77 and 516,776.66
Similar ratio
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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.