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Finding the Fourth Proportional to 435,785.70, 652,272.38 and 225,133.86

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Solution

The fourth proportional to 435,785.70, 652,272.38 and 225,133.86 is: 336,974.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,785.70 : 652,272.38 = 225,133.86 : x
  2. Step 2: Convert to fraction form
    435,785.70/652,272.38 = 225,133.86/x
  3. Step 3: Cross multiply
    435,785.70x = 652,272.38 × 225,133.86
  4. Step 4: Simplify right side
    435,785.70x = 146,848,597,555.12
  5. Step 5: Solve for x
    x = 146,848,597,555.12/435,785.70
  6. Step 6: Final answer
    x = 336,974.34

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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.