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Finding the Fourth Proportional to 352,803.80, 529,205.70 and 329,184.20

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Solution

The fourth proportional to 352,803.80, 529,205.70 and 329,184.20 is: 493,776.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,803.80 : 529,205.70 = 329,184.20 : x
  2. Step 2: Convert to fraction form
    352,803.80/529,205.70 = 329,184.20/x
  3. Step 3: Cross multiply
    352,803.80x = 529,205.70 × 329,184.20
  4. Step 4: Simplify right side
    352,803.80x = 174,206,154,989.94
  5. Step 5: Solve for x
    x = 174,206,154,989.94/352,803.80
  6. Step 6: Final answer
    x = 493,776.30

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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.