Home / 1,210,192.44-1,670,065.74-666,330.36

Finding the Fourth Proportional to 1,210,192.44, 1,670,065.74 and 666,330.36

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Solution

The fourth proportional to 1,210,192.44, 1,670,065.74 and 666,330.36 is: 919,535.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,192.44 : 1,670,065.74 = 666,330.36 : x
  2. Step 2: Convert to fraction form
    1,210,192.44/1,670,065.74 = 666,330.36/x
  3. Step 3: Cross multiply
    1,210,192.44x = 1,670,065.74 × 666,330.36
  4. Step 4: Simplify right side
    1,210,192.44x = 1,112,815,505,757.87
  5. Step 5: Solve for x
    x = 1,112,815,505,757.87/1,210,192.44
  6. Step 6: Final answer
    x = 919,535.99

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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.