Home / 805,956.11-1,112,175.49-443,321.42

Finding the Fourth Proportional to 805,956.11, 1,112,175.49 and 443,321.42

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Solution

The fourth proportional to 805,956.11, 1,112,175.49 and 443,321.42 is: 611,759.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,956.11 : 1,112,175.49 = 443,321.42 : x
  2. Step 2: Convert to fraction form
    805,956.11/1,112,175.49 = 443,321.42/x
  3. Step 3: Cross multiply
    805,956.11x = 1,112,175.49 × 443,321.42
  4. Step 4: Simplify right side
    805,956.11x = 493,051,217,516.00
  5. Step 5: Solve for x
    x = 493,051,217,516.00/805,956.11
  6. Step 6: Final answer
    x = 611,759.39

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Double scale
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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.