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Finding the Fourth Proportional to 304,043.20, 419,576.80 and 168,085.60

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Solution

The fourth proportional to 304,043.20, 419,576.80 and 168,085.60 is: 231,956.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,043.20 : 419,576.80 = 168,085.60 : x
  2. Step 2: Convert to fraction form
    304,043.20/419,576.80 = 168,085.60/x
  3. Step 3: Cross multiply
    304,043.20x = 419,576.80 × 168,085.60
  4. Step 4: Simplify right side
    304,043.20x = 70,524,818,174.08
  5. Step 5: Solve for x
    x = 70,524,818,174.08/304,043.20
  6. Step 6: Final answer
    x = 231,956.57

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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.