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Finding the Fourth Proportional to 479,446.70, 661,885.22 and 350,240.09

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Solution

The fourth proportional to 479,446.70, 661,885.22 and 350,240.09 is: 483,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,446.70 : 661,885.22 = 350,240.09 : x
  2. Step 2: Convert to fraction form
    479,446.70/661,885.22 = 350,240.09/x
  3. Step 3: Cross multiply
    479,446.70x = 661,885.22 × 350,240.09
  4. Step 4: Simplify right side
    479,446.70x = 231,818,738,925.98
  5. Step 5: Solve for x
    x = 231,818,738,925.98/479,446.70
  6. Step 6: Final answer
    x = 483,513.05

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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.