Home / 1,210,057.99-1,669,816.62-666,087.53

Finding the Fourth Proportional to 1,210,057.99, 1,669,816.62 and 666,087.53

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Solution

The fourth proportional to 1,210,057.99, 1,669,816.62 and 666,087.53 is: 919,165.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,057.99 : 1,669,816.62 = 666,087.53 : x
  2. Step 2: Convert to fraction form
    1,210,057.99/1,669,816.62 = 666,087.53/x
  3. Step 3: Cross multiply
    1,210,057.99x = 1,669,816.62 × 666,087.53
  4. Step 4: Simplify right side
    1,210,057.99x = 1,112,244,019,619.67
  5. Step 5: Solve for x
    x = 1,112,244,019,619.67/1,210,057.99
  6. Step 6: Final answer
    x = 919,165.88

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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.