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Finding the Fourth Proportional to 304,836.14, 420,673.80 and 168,878.92

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Solution

The fourth proportional to 304,836.14, 420,673.80 and 168,878.92 is: 233,052.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,836.14 : 420,673.80 = 168,878.92 : x
  2. Step 2: Convert to fraction form
    304,836.14/420,673.80 = 168,878.92/x
  3. Step 3: Cross multiply
    304,836.14x = 420,673.80 × 168,878.92
  4. Step 4: Simplify right side
    304,836.14x = 71,042,934,912.93
  5. Step 5: Solve for x
    x = 71,042,934,912.93/304,836.14
  6. Step 6: Final answer
    x = 233,052.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.