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Finding the Fourth Proportional to 634,460.72, 951,310.91 and 201,991.28

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Solution

The fourth proportional to 634,460.72, 951,310.91 and 201,991.28 is: 302,865.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,460.72 : 951,310.91 = 201,991.28 : x
  2. Step 2: Convert to fraction form
    634,460.72/951,310.91 = 201,991.28/x
  3. Step 3: Cross multiply
    634,460.72x = 951,310.91 × 201,991.28
  4. Step 4: Simplify right side
    634,460.72x = 192,156,508,388.87
  5. Step 5: Solve for x
    x = 192,156,508,388.87/634,460.72
  6. Step 6: Final answer
    x = 302,865.89

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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.