Home / 818,383.23-1,129,369.23-455,876.64

Finding the Fourth Proportional to 818,383.23, 1,129,369.23 and 455,876.64

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Solution

The fourth proportional to 818,383.23, 1,129,369.23 and 455,876.64 is: 629,109.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,383.23 : 1,129,369.23 = 455,876.64 : x
  2. Step 2: Convert to fraction form
    818,383.23/1,129,369.23 = 455,876.64/x
  3. Step 3: Cross multiply
    818,383.23x = 1,129,369.23 × 455,876.64
  4. Step 4: Simplify right side
    818,383.23x = 514,853,049,891.79
  5. Step 5: Solve for x
    x = 514,853,049,891.79/818,383.23
  6. Step 6: Final answer
    x = 629,109.97

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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.