Home / 1,185,143.88-1,635,213.09-719,984.25

Finding the Fourth Proportional to 1,185,143.88, 1,635,213.09 and 719,984.25

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Solution

The fourth proportional to 1,185,143.88, 1,635,213.09 and 719,984.25 is: 993,404.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,143.88 : 1,635,213.09 = 719,984.25 : x
  2. Step 2: Convert to fraction form
    1,185,143.88/1,635,213.09 = 719,984.25/x
  3. Step 3: Cross multiply
    1,185,143.88x = 1,635,213.09 × 719,984.25
  4. Step 4: Simplify right side
    1,185,143.88x = 1,177,327,670,193.83
  5. Step 5: Solve for x
    x = 1,177,327,670,193.83/1,185,143.88
  6. Step 6: Final answer
    x = 993,404.84

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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.