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Finding the Fourth Proportional to 281,384.68, 421,777.82 and 192,613.16

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Solution

The fourth proportional to 281,384.68, 421,777.82 and 192,613.16 is: 288,714.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,384.68 : 421,777.82 = 192,613.16 : x
  2. Step 2: Convert to fraction form
    281,384.68/421,777.82 = 192,613.16/x
  3. Step 3: Cross multiply
    281,384.68x = 421,777.82 × 192,613.16
  4. Step 4: Simplify right side
    281,384.68x = 81,239,958,728.11
  5. Step 5: Solve for x
    x = 81,239,958,728.11/281,384.68
  6. Step 6: Final answer
    x = 288,714.93

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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.