Home / 1,211,716.14-1,672,159.90-667,852.22

Finding the Fourth Proportional to 1,211,716.14, 1,672,159.90 and 667,852.22

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Solution

The fourth proportional to 1,211,716.14, 1,672,159.90 and 667,852.22 is: 921,631.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,716.14 : 1,672,159.90 = 667,852.22 : x
  2. Step 2: Convert to fraction form
    1,211,716.14/1,672,159.90 = 667,852.22/x
  3. Step 3: Cross multiply
    1,211,716.14x = 1,672,159.90 × 667,852.22
  4. Step 4: Simplify right side
    1,211,716.14x = 1,116,755,701,409.98
  5. Step 5: Solve for x
    x = 1,116,755,701,409.98/1,211,716.14
  6. Step 6: Final answer
    x = 921,631.45

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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.