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Finding the Fourth Proportional to 304,067.61, 455,908.23 and 266,702.72

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Solution

The fourth proportional to 304,067.61, 455,908.23 and 266,702.72 is: 399,884.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,067.61 : 455,908.23 = 266,702.72 : x
  2. Step 2: Convert to fraction form
    304,067.61/455,908.23 = 266,702.72/x
  3. Step 3: Cross multiply
    304,067.61x = 455,908.23 × 266,702.72
  4. Step 4: Simplify right side
    304,067.61x = 121,591,962,731.84
  5. Step 5: Solve for x
    x = 121,591,962,731.84/304,067.61
  6. Step 6: Final answer
    x = 399,884.63

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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.