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Finding the Fourth Proportional to 503,262.72, 754,660.80 and 187,634.88

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Solution

The fourth proportional to 503,262.72, 754,660.80 and 187,634.88 is: 281,365.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,262.72 : 754,660.80 = 187,634.88 : x
  2. Step 2: Convert to fraction form
    503,262.72/754,660.80 = 187,634.88/x
  3. Step 3: Cross multiply
    503,262.72x = 754,660.80 × 187,634.88
  4. Step 4: Simplify right side
    503,262.72x = 141,600,688,648.70
  5. Step 5: Solve for x
    x = 141,600,688,648.70/503,262.72
  6. Step 6: Final answer
    x = 281,365.34

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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.