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Finding the Fourth Proportional to 377,757.32, 521,324.25 and 214,425.28

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Solution

The fourth proportional to 377,757.32, 521,324.25 and 214,425.28 is: 295,917.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,757.32 : 521,324.25 = 214,425.28 : x
  2. Step 2: Convert to fraction form
    377,757.32/521,324.25 = 214,425.28/x
  3. Step 3: Cross multiply
    377,757.32x = 521,324.25 × 214,425.28
  4. Step 4: Simplify right side
    377,757.32x = 111,785,094,598.29
  5. Step 5: Solve for x
    x = 111,785,094,598.29/377,757.32
  6. Step 6: Final answer
    x = 295,917.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.