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Finding the Fourth Proportional to 503,288.60, 754,699.61 and 187,660.76

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Solution

The fourth proportional to 503,288.60, 754,699.61 and 187,660.76 is: 281,404.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,288.60 : 754,699.61 = 187,660.76 : x
  2. Step 2: Convert to fraction form
    503,288.60/754,699.61 = 187,660.76/x
  3. Step 3: Cross multiply
    503,288.60x = 754,699.61 × 187,660.76
  4. Step 4: Simplify right side
    503,288.60x = 141,627,498,610.81
  5. Step 5: Solve for x
    x = 141,627,498,610.81/503,288.60
  6. Step 6: Final answer
    x = 281,404.15

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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.