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Finding the Fourth Proportional to 503,288.85, 754,699.98 and 187,661.01

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Solution

The fourth proportional to 503,288.85, 754,699.98 and 187,661.01 is: 281,404.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,288.85 : 754,699.98 = 187,661.01 : x
  2. Step 2: Convert to fraction form
    503,288.85/754,699.98 = 187,661.01/x
  3. Step 3: Cross multiply
    503,288.85x = 754,699.98 × 187,661.01
  4. Step 4: Simplify right side
    503,288.85x = 141,627,760,493.78
  5. Step 5: Solve for x
    x = 141,627,760,493.78/503,288.85
  6. Step 6: Final answer
    x = 281,404.53

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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.