Home / 919,523.86-1,268,930.74-517,115.86

Finding the Fourth Proportional to 919,523.86, 1,268,930.74 and 517,115.86

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Solution

The fourth proportional to 919,523.86, 1,268,930.74 and 517,115.86 is: 713,613.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,523.86 : 1,268,930.74 = 517,115.86 : x
  2. Step 2: Convert to fraction form
    919,523.86/1,268,930.74 = 517,115.86/x
  3. Step 3: Cross multiply
    919,523.86x = 1,268,930.74 × 517,115.86
  4. Step 4: Simplify right side
    919,523.86x = 656,184,210,895.54
  5. Step 5: Solve for x
    x = 656,184,210,895.54/919,523.86
  6. Step 6: Final answer
    x = 713,613.03

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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.