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Finding the Fourth Proportional to 479,538.23, 661,715.61 and 264,664.44

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Solution

The fourth proportional to 479,538.23, 661,715.61 and 264,664.44 is: 365,210.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,538.23 : 661,715.61 = 264,664.44 : x
  2. Step 2: Convert to fraction form
    479,538.23/661,715.61 = 264,664.44/x
  3. Step 3: Cross multiply
    479,538.23x = 661,715.61 × 264,664.44
  4. Step 4: Simplify right side
    479,538.23x = 175,132,591,359.91
  5. Step 5: Solve for x
    x = 175,132,591,359.91/479,538.23
  6. Step 6: Final answer
    x = 365,210.90

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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.