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Finding the Fourth Proportional to 479,522.70, 661,694.21 and 264,648.89

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Solution

The fourth proportional to 479,522.70, 661,694.21 and 264,648.89 is: 365,189.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,522.70 : 661,694.21 = 264,648.89 : x
  2. Step 2: Convert to fraction form
    479,522.70/661,694.21 = 264,648.89/x
  3. Step 3: Cross multiply
    479,522.70x = 661,694.21 × 264,648.89
  4. Step 4: Simplify right side
    479,522.70x = 175,116,639,519.35
  5. Step 5: Solve for x
    x = 175,116,639,519.35/479,522.70
  6. Step 6: Final answer
    x = 365,189.47

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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.