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Finding the Fourth Proportional to 352,969.40, 529,454.10 and 203,670.20

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Solution

The fourth proportional to 352,969.40, 529,454.10 and 203,670.20 is: 305,505.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,969.40 : 529,454.10 = 203,670.20 : x
  2. Step 2: Convert to fraction form
    352,969.40/529,454.10 = 203,670.20/x
  3. Step 3: Cross multiply
    352,969.40x = 529,454.10 × 203,670.20
  4. Step 4: Simplify right side
    352,969.40x = 107,834,022,437.82
  5. Step 5: Solve for x
    x = 107,834,022,437.82/352,969.40
  6. Step 6: Final answer
    x = 305,505.30

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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.