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Finding the Fourth Proportional to 504,781.49, 756,950.49 and 189,016.89

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Solution

The fourth proportional to 504,781.49, 756,950.49 and 189,016.89 is: 283,442.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,781.49 : 756,950.49 = 189,016.89 : x
  2. Step 2: Convert to fraction form
    504,781.49/756,950.49 = 189,016.89/x
  3. Step 3: Cross multiply
    504,781.49x = 756,950.49 × 189,016.89
  4. Step 4: Simplify right side
    504,781.49x = 143,076,427,503.78
  5. Step 5: Solve for x
    x = 143,076,427,503.78/504,781.49
  6. Step 6: Final answer
    x = 283,442.30

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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.