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Finding the Fourth Proportional to 355,759.71, 532,784.38 and 203,495.30

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Solution

The fourth proportional to 355,759.71, 532,784.38 and 203,495.30 is: 304,753.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,759.71 : 532,784.38 = 203,495.30 : x
  2. Step 2: Convert to fraction form
    355,759.71/532,784.38 = 203,495.30/x
  3. Step 3: Cross multiply
    355,759.71x = 532,784.38 × 203,495.30
  4. Step 4: Simplify right side
    355,759.71x = 108,419,117,243.41
  5. Step 5: Solve for x
    x = 108,419,117,243.41/355,759.71
  6. Step 6: Final answer
    x = 304,753.78

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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.