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Finding the Fourth Proportional to 352,956.30, 529,434.45 and 329,628.30

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Solution

The fourth proportional to 352,956.30, 529,434.45 and 329,628.30 is: 494,442.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,956.30 : 529,434.45 = 329,628.30 : x
  2. Step 2: Convert to fraction form
    352,956.30/529,434.45 = 329,628.30/x
  3. Step 3: Cross multiply
    352,956.30x = 529,434.45 × 329,628.30
  4. Step 4: Simplify right side
    352,956.30x = 174,516,577,714.94
  5. Step 5: Solve for x
    x = 174,516,577,714.94/352,956.30
  6. Step 6: Final answer
    x = 494,442.45

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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.