Home / 770,169.60-1,153,067.40-728,276.40

Finding the Fourth Proportional to 770,169.60, 1,153,067.40 and 728,276.40

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Solution

The fourth proportional to 770,169.60, 1,153,067.40 and 728,276.40 is: 1,090,346.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,169.60 : 1,153,067.40 = 728,276.40 : x
  2. Step 2: Convert to fraction form
    770,169.60/1,153,067.40 = 728,276.40/x
  3. Step 3: Cross multiply
    770,169.60x = 1,153,067.40 × 728,276.40
  4. Step 4: Simplify right side
    770,169.60x = 839,751,775,029.36
  5. Step 5: Solve for x
    x = 839,751,775,029.36/770,169.60
  6. Step 6: Final answer
    x = 1,090,346.56

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1.5x scale

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.