Home / 818,809.68-1,228,045.13-219,628.32

Finding the Fourth Proportional to 818,809.68, 1,228,045.13 and 219,628.32

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Solution

The fourth proportional to 818,809.68, 1,228,045.13 and 219,628.32 is: 329,397.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,809.68 : 1,228,045.13 = 219,628.32 : x
  2. Step 2: Convert to fraction form
    818,809.68/1,228,045.13 = 219,628.32/x
  3. Step 3: Cross multiply
    818,809.68x = 1,228,045.13 × 219,628.32
  4. Step 4: Simplify right side
    818,809.68x = 269,713,488,786.08
  5. Step 5: Solve for x
    x = 269,713,488,786.08/818,809.68
  6. Step 6: Final answer
    x = 329,397.04

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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.