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Finding the Fourth Proportional to 304,876.72, 457,315.26 and 127,286.92

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Solution

The fourth proportional to 304,876.72, 457,315.26 and 127,286.92 is: 190,930.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,876.72 : 457,315.26 = 127,286.92 : x
  2. Step 2: Convert to fraction form
    304,876.72/457,315.26 = 127,286.92/x
  3. Step 3: Cross multiply
    304,876.72x = 457,315.26 × 127,286.92
  4. Step 4: Simplify right side
    304,876.72x = 58,210,250,914.40
  5. Step 5: Solve for x
    x = 58,210,250,914.40/304,876.72
  6. Step 6: Final answer
    x = 190,930.46

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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.