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Finding the Fourth Proportional to 329,661.40, 494,492.10 and 223,373.20

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Solution

The fourth proportional to 329,661.40, 494,492.10 and 223,373.20 is: 335,059.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,661.40 : 494,492.10 = 223,373.20 : x
  2. Step 2: Convert to fraction form
    329,661.40/494,492.10 = 223,373.20/x
  3. Step 3: Cross multiply
    329,661.40x = 494,492.10 × 223,373.20
  4. Step 4: Simplify right side
    329,661.40x = 110,456,282,751.72
  5. Step 5: Solve for x
    x = 110,456,282,751.72/329,661.40
  6. Step 6: Final answer
    x = 335,059.80

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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.