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Finding the Fourth Proportional to 348,850.80, 523,276.20 and 328,114.80

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Solution

The fourth proportional to 348,850.80, 523,276.20 and 328,114.80 is: 492,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,850.80 : 523,276.20 = 328,114.80 : x
  2. Step 2: Convert to fraction form
    348,850.80/523,276.20 = 328,114.80/x
  3. Step 3: Cross multiply
    348,850.80x = 523,276.20 × 328,114.80
  4. Step 4: Simplify right side
    348,850.80x = 171,694,665,707.76
  5. Step 5: Solve for x
    x = 171,694,665,707.76/348,850.80
  6. Step 6: Final answer
    x = 492,172.20

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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.