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Finding the Fourth Proportional to 304,843.14, 420,683.46 and 168,885.90

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Solution

The fourth proportional to 304,843.14, 420,683.46 and 168,885.90 is: 233,062.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,843.14 : 420,683.46 = 168,885.90 : x
  2. Step 2: Convert to fraction form
    304,843.14/420,683.46 = 168,885.90/x
  3. Step 3: Cross multiply
    304,843.14x = 420,683.46 × 168,885.90
  4. Step 4: Simplify right side
    304,843.14x = 71,047,504,757.21
  5. Step 5: Solve for x
    x = 71,047,504,757.21/304,843.14
  6. Step 6: Final answer
    x = 233,062.50

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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.