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Finding the Fourth Proportional to 479,205.36, 661,600.44 and 336,541.68

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Solution

The fourth proportional to 479,205.36, 661,600.44 and 336,541.68 is: 464,636.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,205.36 : 661,600.44 = 336,541.68 : x
  2. Step 2: Convert to fraction form
    479,205.36/661,600.44 = 336,541.68/x
  3. Step 3: Cross multiply
    479,205.36x = 661,600.44 × 336,541.68
  4. Step 4: Simplify right side
    479,205.36x = 222,656,123,566.34
  5. Step 5: Solve for x
    x = 222,656,123,566.34/479,205.36
  6. Step 6: Final answer
    x = 464,636.13

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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.