Home / 1,213.79-1,819.61-444.11

Finding the Fourth Proportional to 1,213.79, 1,819.61 and 444.11

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Solution

The fourth proportional to 1,213.79, 1,819.61 and 444.11 is: 665.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213.79 : 1,819.61 = 444.11 : x
  2. Step 2: Convert to fraction form
    1,213.79/1,819.61 = 444.11/x
  3. Step 3: Cross multiply
    1,213.79x = 1,819.61 × 444.11
  4. Step 4: Simplify right side
    1,213.79x = 808,104.78
  5. Step 5: Solve for x
    x = 808,104.78/1,213.79
  6. Step 6: Final answer
    x = 665.77

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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.