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Finding the Fourth Proportional to 375,308.24, 561,632.52 and 331,021.52

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Solution

The fourth proportional to 375,308.24, 561,632.52 and 331,021.52 is: 495,359.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,308.24 : 561,632.52 = 331,021.52 : x
  2. Step 2: Convert to fraction form
    375,308.24/561,632.52 = 331,021.52/x
  3. Step 3: Cross multiply
    375,308.24x = 561,632.52 × 331,021.52
  4. Step 4: Simplify right side
    375,308.24x = 185,912,450,451.83
  5. Step 5: Solve for x
    x = 185,912,450,451.83/375,308.24
  6. Step 6: Final answer
    x = 495,359.36

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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.