Home / 861,254.72-1,188,522.92-479,274.96

Finding the Fourth Proportional to 861,254.72, 1,188,522.92 and 479,274.96

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Solution

The fourth proportional to 861,254.72, 1,188,522.92 and 479,274.96 is: 661,394.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,254.72 : 1,188,522.92 = 479,274.96 : x
  2. Step 2: Convert to fraction form
    861,254.72/1,188,522.92 = 479,274.96/x
  3. Step 3: Cross multiply
    861,254.72x = 1,188,522.92 × 479,274.96
  4. Step 4: Simplify right side
    861,254.72x = 569,629,274,942.08
  5. Step 5: Solve for x
    x = 569,629,274,942.08/861,254.72
  6. Step 6: Final answer
    x = 661,394.66

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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.