Home / 263,209.20-394,841.46-85,730.04

Finding the Fourth Proportional to 263,209.20, 394,841.46 and 85,730.04

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Solution

The fourth proportional to 263,209.20, 394,841.46 and 85,730.04 is: 128,604.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,209.20 : 394,841.46 = 85,730.04 : x
  2. Step 2: Convert to fraction form
    263,209.20/394,841.46 = 85,730.04/x
  3. Step 3: Cross multiply
    263,209.20x = 394,841.46 × 85,730.04
  4. Step 4: Simplify right side
    263,209.20x = 33,849,774,159.46
  5. Step 5: Solve for x
    x = 33,849,774,159.46/263,209.20
  6. Step 6: Final answer
    x = 128,604.07

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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.