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Finding the Fourth Proportional to 348,553.20, 523,218.60 and 325,711.20

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Solution

The fourth proportional to 348,553.20, 523,218.60 and 325,711.20 is: 488,930.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,553.20 : 523,218.60 = 325,711.20 : x
  2. Step 2: Convert to fraction form
    348,553.20/523,218.60 = 325,711.20/x
  3. Step 3: Cross multiply
    348,553.20x = 523,218.60 × 325,711.20
  4. Step 4: Simplify right side
    348,553.20x = 170,418,158,068.32
  5. Step 5: Solve for x
    x = 170,418,158,068.32/348,553.20
  6. Step 6: Final answer
    x = 488,930.12

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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.