Home / 919,039.15-1,268,086.31-536,992.09

Finding the Fourth Proportional to 919,039.15, 1,268,086.31 and 536,992.09

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Solution

The fourth proportional to 919,039.15, 1,268,086.31 and 536,992.09 is: 740,939.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,039.15 : 1,268,086.31 = 536,992.09 : x
  2. Step 2: Convert to fraction form
    919,039.15/1,268,086.31 = 536,992.09/x
  3. Step 3: Cross multiply
    919,039.15x = 1,268,086.31 × 536,992.09
  4. Step 4: Simplify right side
    919,039.15x = 680,952,315,222.33
  5. Step 5: Solve for x
    x = 680,952,315,222.33/919,039.15
  6. Step 6: Final answer
    x = 740,939.40

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1.5x scale

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.