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Finding the Fourth Proportional to 354,918.97, 531,529.74 and 204,703.87

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Solution

The fourth proportional to 354,918.97, 531,529.74 and 204,703.87 is: 306,566.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,918.97 : 531,529.74 = 204,703.87 : x
  2. Step 2: Convert to fraction form
    354,918.97/531,529.74 = 204,703.87/x
  3. Step 3: Cross multiply
    354,918.97x = 531,529.74 × 204,703.87
  4. Step 4: Simplify right side
    354,918.97x = 108,806,194,236.91
  5. Step 5: Solve for x
    x = 108,806,194,236.91/354,918.97
  6. Step 6: Final answer
    x = 306,566.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.