Home / 1,209,945.96-1,669,736.70-666,092.52

Finding the Fourth Proportional to 1,209,945.96, 1,669,736.70 and 666,092.52

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Solution

The fourth proportional to 1,209,945.96, 1,669,736.70 and 666,092.52 is: 919,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,945.96 : 1,669,736.70 = 666,092.52 : x
  2. Step 2: Convert to fraction form
    1,209,945.96/1,669,736.70 = 666,092.52/x
  3. Step 3: Cross multiply
    1,209,945.96x = 1,669,736.70 × 666,092.52
  4. Step 4: Simplify right side
    1,209,945.96x = 1,112,199,126,239.48
  5. Step 5: Solve for x
    x = 1,112,199,126,239.48/1,209,945.96
  6. Step 6: Final answer
    x = 919,213.88

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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.