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Finding the Fourth Proportional to 352,698.20, 529,047.30 and 347,449.40

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Solution

The fourth proportional to 352,698.20, 529,047.30 and 347,449.40 is: 521,174.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,698.20 : 529,047.30 = 347,449.40 : x
  2. Step 2: Convert to fraction form
    352,698.20/529,047.30 = 347,449.40/x
  3. Step 3: Cross multiply
    352,698.20x = 529,047.30 × 347,449.40
  4. Step 4: Simplify right side
    352,698.20x = 183,817,166,956.62
  5. Step 5: Solve for x
    x = 183,817,166,956.62/352,698.20
  6. Step 6: Final answer
    x = 521,174.10

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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.