Home / 1,768,169.60-2,653,636.80-821,657.60

Finding the Fourth Proportional to 1,768,169.60, 2,653,636.80 and 821,657.60

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Solution

The fourth proportional to 1,768,169.60, 2,653,636.80 and 821,657.60 is: 1,233,128.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768,169.60 : 2,653,636.80 = 821,657.60 : x
  2. Step 2: Convert to fraction form
    1,768,169.60/2,653,636.80 = 821,657.60/x
  3. Step 3: Cross multiply
    1,768,169.60x = 2,653,636.80 × 821,657.60
  4. Step 4: Simplify right side
    1,768,169.60x = 2,180,380,844,359.68
  5. Step 5: Solve for x
    x = 2,180,380,844,359.68/1,768,169.60
  6. Step 6: Final answer
    x = 1,233,128.79

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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.