Home / 886,486.50-1,329,729.78-221,638.50

Finding the Fourth Proportional to 886,486.50, 1,329,729.78 and 221,638.50

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Solution

The fourth proportional to 886,486.50, 1,329,729.78 and 221,638.50 is: 332,457.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,486.50 : 1,329,729.78 = 221,638.50 : x
  2. Step 2: Convert to fraction form
    886,486.50/1,329,729.78 = 221,638.50/x
  3. Step 3: Cross multiply
    886,486.50x = 1,329,729.78 × 221,638.50
  4. Step 4: Simplify right side
    886,486.50x = 294,719,313,844.53
  5. Step 5: Solve for x
    x = 294,719,313,844.53/886,486.50
  6. Step 6: Final answer
    x = 332,457.76

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.