Home / 1,210,054.26-1,669,811.49-666,083.80

Finding the Fourth Proportional to 1,210,054.26, 1,669,811.49 and 666,083.80

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Solution

The fourth proportional to 1,210,054.26, 1,669,811.49 and 666,083.80 is: 919,160.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,054.26 : 1,669,811.49 = 666,083.80 : x
  2. Step 2: Convert to fraction form
    1,210,054.26/1,669,811.49 = 666,083.80/x
  3. Step 3: Cross multiply
    1,210,054.26x = 1,669,811.49 × 666,083.80
  4. Step 4: Simplify right side
    1,210,054.26x = 1,112,234,382,542.86
  5. Step 5: Solve for x
    x = 1,112,234,382,542.86/1,210,054.26
  6. Step 6: Final answer
    x = 919,160.75

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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.