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Finding the Fourth Proportional to 352,634.40, 529,340.40 and 194,781.60

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Solution

The fourth proportional to 352,634.40, 529,340.40 and 194,781.60 is: 292,387.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,634.40 : 529,340.40 = 194,781.60 : x
  2. Step 2: Convert to fraction form
    352,634.40/529,340.40 = 194,781.60/x
  3. Step 3: Cross multiply
    352,634.40x = 529,340.40 × 194,781.60
  4. Step 4: Simplify right side
    352,634.40x = 103,105,770,056.64
  5. Step 5: Solve for x
    x = 103,105,770,056.64/352,634.40
  6. Step 6: Final answer
    x = 292,387.16

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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.