Home / 856,163.05-1,181,513.69-516,565.69

Finding the Fourth Proportional to 856,163.05, 1,181,513.69 and 516,565.69

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Solution

The fourth proportional to 856,163.05, 1,181,513.69 and 516,565.69 is: 712,865.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,163.05 : 1,181,513.69 = 516,565.69 : x
  2. Step 2: Convert to fraction form
    856,163.05/1,181,513.69 = 516,565.69/x
  3. Step 3: Cross multiply
    856,163.05x = 1,181,513.69 × 516,565.69
  4. Step 4: Simplify right side
    856,163.05x = 610,329,430,919.81
  5. Step 5: Solve for x
    x = 610,329,430,919.81/856,163.05
  6. Step 6: Final answer
    x = 712,865.89

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Double scale
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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.