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Finding the Fourth Proportional to 479,478.44, 661,677.15 and 264,618.50

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Solution

The fourth proportional to 479,478.44, 661,677.15 and 264,618.50 is: 365,171.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,478.44 : 661,677.15 = 264,618.50 : x
  2. Step 2: Convert to fraction form
    479,478.44/661,677.15 = 264,618.50/x
  3. Step 3: Cross multiply
    479,478.44x = 661,677.15 × 264,618.50
  4. Step 4: Simplify right side
    479,478.44x = 175,092,012,601.21
  5. Step 5: Solve for x
    x = 175,092,012,601.21/479,478.44
  6. Step 6: Final answer
    x = 365,171.82

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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.