Home / 1,768,171.60-2,653,639.80-821,659.60

Finding the Fourth Proportional to 1,768,171.60, 2,653,639.80 and 821,659.60

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Solution

The fourth proportional to 1,768,171.60, 2,653,639.80 and 821,659.60 is: 1,233,131.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768,171.60 : 2,653,639.80 = 821,659.60 : x
  2. Step 2: Convert to fraction form
    1,768,171.60/2,653,639.80 = 821,659.60/x
  3. Step 3: Cross multiply
    1,768,171.60x = 2,653,639.80 × 821,659.60
  4. Step 4: Simplify right side
    1,768,171.60x = 2,180,388,616,612.08
  5. Step 5: Solve for x
    x = 2,180,388,616,612.08/1,768,171.60
  6. Step 6: Final answer
    x = 1,233,131.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.