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Finding the Fourth Proportional to 623,930.70, 935,896.03 and 203,206.57

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Solution

The fourth proportional to 623,930.70, 935,896.03 and 203,206.57 is: 304,809.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,930.70 : 935,896.03 = 203,206.57 : x
  2. Step 2: Convert to fraction form
    623,930.70/935,896.03 = 203,206.57/x
  3. Step 3: Cross multiply
    623,930.70x = 935,896.03 × 203,206.57
  4. Step 4: Simplify right side
    623,930.70x = 190,180,222,132.92
  5. Step 5: Solve for x
    x = 190,180,222,132.92/623,930.70
  6. Step 6: Final answer
    x = 304,809.85

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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.