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Finding the Fourth Proportional to 422,522.92, 634,374.06 and 403,231.96

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Solution

The fourth proportional to 422,522.92, 634,374.06 and 403,231.96 is: 605,410.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,522.92 : 634,374.06 = 403,231.96 : x
  2. Step 2: Convert to fraction form
    422,522.92/634,374.06 = 403,231.96/x
  3. Step 3: Cross multiply
    422,522.92x = 634,374.06 × 403,231.96
  4. Step 4: Simplify right side
    422,522.92x = 255,799,895,586.96
  5. Step 5: Solve for x
    x = 255,799,895,586.96/422,522.92
  6. Step 6: Final answer
    x = 605,410.70

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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.