Home / 991,727.82-1,368,613.26-561,993.66

Finding the Fourth Proportional to 991,727.82, 1,368,613.26 and 561,993.66

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Solution

The fourth proportional to 991,727.82, 1,368,613.26 and 561,993.66 is: 775,567.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,727.82 : 1,368,613.26 = 561,993.66 : x
  2. Step 2: Convert to fraction form
    991,727.82/1,368,613.26 = 561,993.66/x
  3. Step 3: Cross multiply
    991,727.82x = 1,368,613.26 × 561,993.66
  4. Step 4: Simplify right side
    991,727.82x = 769,151,975,111.93
  5. Step 5: Solve for x
    x = 769,151,975,111.93/991,727.82
  6. Step 6: Final answer
    x = 775,567.61

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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.