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Finding the Fourth Proportional to 352,568.40, 529,630.20 and 339,349.20

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Solution

The fourth proportional to 352,568.40, 529,630.20 and 339,349.20 is: 509,772.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,568.40 : 529,630.20 = 339,349.20 : x
  2. Step 2: Convert to fraction form
    352,568.40/529,630.20 = 339,349.20/x
  3. Step 3: Cross multiply
    352,568.40x = 529,630.20 × 339,349.20
  4. Step 4: Simplify right side
    352,568.40x = 179,729,584,665.84
  5. Step 5: Solve for x
    x = 179,729,584,665.84/352,568.40
  6. Step 6: Final answer
    x = 509,772.24

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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.