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Finding the Fourth Proportional to 415,239.40, 573,020.89 and 254,093.95

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Solution

The fourth proportional to 415,239.40, 573,020.89 and 254,093.95 is: 350,643.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,239.40 : 573,020.89 = 254,093.95 : x
  2. Step 2: Convert to fraction form
    415,239.40/573,020.89 = 254,093.95/x
  3. Step 3: Cross multiply
    415,239.40x = 573,020.89 × 254,093.95
  4. Step 4: Simplify right side
    415,239.40x = 145,601,141,372.62
  5. Step 5: Solve for x
    x = 145,601,141,372.62/415,239.40
  6. Step 6: Final answer
    x = 350,643.85

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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.