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Finding the Fourth Proportional to 483,638.43, 667,214.01 and 302,035.08

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Solution

The fourth proportional to 483,638.43, 667,214.01 and 302,035.08 is: 416,679.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,638.43 : 667,214.01 = 302,035.08 : x
  2. Step 2: Convert to fraction form
    483,638.43/667,214.01 = 302,035.08/x
  3. Step 3: Cross multiply
    483,638.43x = 667,214.01 × 302,035.08
  4. Step 4: Simplify right side
    483,638.43x = 201,522,036,887.47
  5. Step 5: Solve for x
    x = 201,522,036,887.47/483,638.43
  6. Step 6: Final answer
    x = 416,679.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.