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Finding the Fourth Proportional to 401,519.02, 603,027.36 and 353,504.66

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Solution

The fourth proportional to 401,519.02, 603,027.36 and 353,504.66 is: 530,916.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,519.02 : 603,027.36 = 353,504.66 : x
  2. Step 2: Convert to fraction form
    401,519.02/603,027.36 = 353,504.66/x
  3. Step 3: Cross multiply
    401,519.02x = 603,027.36 × 353,504.66
  4. Step 4: Simplify right side
    401,519.02x = 213,172,981,867.50
  5. Step 5: Solve for x
    x = 213,172,981,867.50/401,519.02
  6. Step 6: Final answer
    x = 530,916.27

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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.