Home / 1,211,860.11-1,672,366.54-668,004.98

Finding the Fourth Proportional to 1,211,860.11, 1,672,366.54 and 668,004.98

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Solution

The fourth proportional to 1,211,860.11, 1,672,366.54 and 668,004.98 is: 921,846.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,860.11 : 1,672,366.54 = 668,004.98 : x
  2. Step 2: Convert to fraction form
    1,211,860.11/1,672,366.54 = 668,004.98/x
  3. Step 3: Cross multiply
    1,211,860.11x = 1,672,366.54 × 668,004.98
  4. Step 4: Simplify right side
    1,211,860.11x = 1,117,149,177,105.37
  5. Step 5: Solve for x
    x = 1,117,149,177,105.37/1,211,860.11
  6. Step 6: Final answer
    x = 921,846.65

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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.