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Finding the Fourth Proportional to 417,634.67, 626,553.88 and 133,325.28

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Solution

The fourth proportional to 417,634.67, 626,553.88 and 133,325.28 is: 200,020.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,634.67 : 626,553.88 = 133,325.28 : x
  2. Step 2: Convert to fraction form
    417,634.67/626,553.88 = 133,325.28/x
  3. Step 3: Cross multiply
    417,634.67x = 626,553.88 × 133,325.28
  4. Step 4: Simplify right side
    417,634.67x = 83,535,471,152.77
  5. Step 5: Solve for x
    x = 83,535,471,152.77/417,634.67
  6. Step 6: Final answer
    x = 200,020.44

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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.