Home / 281,383.68-421,776.32-192,612.16

Finding the Fourth Proportional to 281,383.68, 421,776.32 and 192,612.16

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Solution

The fourth proportional to 281,383.68, 421,776.32 and 192,612.16 is: 288,713.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,383.68 : 421,776.32 = 192,612.16 : x
  2. Step 2: Convert to fraction form
    281,383.68/421,776.32 = 192,612.16/x
  3. Step 3: Cross multiply
    281,383.68x = 421,776.32 × 192,612.16
  4. Step 4: Simplify right side
    281,383.68x = 81,239,248,032.05
  5. Step 5: Solve for x
    x = 81,239,248,032.05/281,383.68
  6. Step 6: Final answer
    x = 288,713.43

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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.