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Finding the Fourth Proportional to 352,562.40, 529,621.20 and 339,343.20

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Solution

The fourth proportional to 352,562.40, 529,621.20 and 339,343.20 is: 509,763.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,562.40 : 529,621.20 = 339,343.20 : x
  2. Step 2: Convert to fraction form
    352,562.40/529,621.20 = 339,343.20/x
  3. Step 3: Cross multiply
    352,562.40x = 529,621.20 × 339,343.20
  4. Step 4: Simplify right side
    352,562.40x = 179,723,352,795.84
  5. Step 5: Solve for x
    x = 179,723,352,795.84/352,562.40
  6. Step 6: Final answer
    x = 509,763.24

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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.