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Finding the Fourth Proportional to 375,732.80, 563,599.20 and 329,076.80

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Solution

The fourth proportional to 375,732.80, 563,599.20 and 329,076.80 is: 493,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,732.80 : 563,599.20 = 329,076.80 : x
  2. Step 2: Convert to fraction form
    375,732.80/563,599.20 = 329,076.80/x
  3. Step 3: Cross multiply
    375,732.80x = 563,599.20 × 329,076.80
  4. Step 4: Simplify right side
    375,732.80x = 185,467,421,218.56
  5. Step 5: Solve for x
    x = 185,467,421,218.56/375,732.80
  6. Step 6: Final answer
    x = 493,615.20

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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.