Home / 866,917.07-1,196,408.64-485,066.87

Finding the Fourth Proportional to 866,917.07, 1,196,408.64 and 485,066.87

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Solution

The fourth proportional to 866,917.07, 1,196,408.64 and 485,066.87 is: 669,427.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,917.07 : 1,196,408.64 = 485,066.87 : x
  2. Step 2: Convert to fraction form
    866,917.07/1,196,408.64 = 485,066.87/x
  3. Step 3: Cross multiply
    866,917.07x = 1,196,408.64 × 485,066.87
  4. Step 4: Simplify right side
    866,917.07x = 580,338,194,245.76
  5. Step 5: Solve for x
    x = 580,338,194,245.76/866,917.07
  6. Step 6: Final answer
    x = 669,427.58

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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.