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Finding the Fourth Proportional to 422,697.62, 634,321.20 and 183,045.50

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Solution

The fourth proportional to 422,697.62, 634,321.20 and 183,045.50 is: 274,687.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,697.62 : 634,321.20 = 183,045.50 : x
  2. Step 2: Convert to fraction form
    422,697.62/634,321.20 = 183,045.50/x
  3. Step 3: Cross multiply
    422,697.62x = 634,321.20 × 183,045.50
  4. Step 4: Simplify right side
    422,697.62x = 116,109,641,214.60
  5. Step 5: Solve for x
    x = 116,109,641,214.60/422,697.62
  6. Step 6: Final answer
    x = 274,687.24

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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.