Home / 1,190,188.71-1,643,581.38-828,601.26

Finding the Fourth Proportional to 1,190,188.71, 1,643,581.38 and 828,601.26

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Solution

The fourth proportional to 1,190,188.71, 1,643,581.38 and 828,601.26 is: 1,144,250.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,188.71 : 1,643,581.38 = 828,601.26 : x
  2. Step 2: Convert to fraction form
    1,190,188.71/1,643,581.38 = 828,601.26/x
  3. Step 3: Cross multiply
    1,190,188.71x = 1,643,581.38 × 828,601.26
  4. Step 4: Simplify right side
    1,190,188.71x = 1,361,873,606,489.49
  5. Step 5: Solve for x
    x = 1,361,873,606,489.49/1,190,188.71
  6. Step 6: Final answer
    x = 1,144,250.15

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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.