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Finding the Fourth Proportional to 366,398.25, 548,785.33 and 281,533.74

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Solution

The fourth proportional to 366,398.25, 548,785.33 and 281,533.74 is: 421,676.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,398.25 : 548,785.33 = 281,533.74 : x
  2. Step 2: Convert to fraction form
    366,398.25/548,785.33 = 281,533.74/x
  3. Step 3: Cross multiply
    366,398.25x = 548,785.33 × 281,533.74
  4. Step 4: Simplify right side
    366,398.25x = 154,501,585,004.37
  5. Step 5: Solve for x
    x = 154,501,585,004.37/366,398.25
  6. Step 6: Final answer
    x = 421,676.65

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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.