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Finding the Fourth Proportional to 364,857.20, 547,285.80 and 329,427.80

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Solution

The fourth proportional to 364,857.20, 547,285.80 and 329,427.80 is: 494,141.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,857.20 : 547,285.80 = 329,427.80 : x
  2. Step 2: Convert to fraction form
    364,857.20/547,285.80 = 329,427.80/x
  3. Step 3: Cross multiply
    364,857.20x = 547,285.80 × 329,427.80
  4. Step 4: Simplify right side
    364,857.20x = 180,291,157,065.24
  5. Step 5: Solve for x
    x = 180,291,157,065.24/364,857.20
  6. Step 6: Final answer
    x = 494,141.70

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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.