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Finding the Fourth Proportional to 353,189.25, 529,783.22 and 290,606.63

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Solution

The fourth proportional to 353,189.25, 529,783.22 and 290,606.63 is: 435,909.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,189.25 : 529,783.22 = 290,606.63 : x
  2. Step 2: Convert to fraction form
    353,189.25/529,783.22 = 290,606.63/x
  3. Step 3: Cross multiply
    353,189.25x = 529,783.22 × 290,606.63
  4. Step 4: Simplify right side
    353,189.25x = 153,958,512,092.80
  5. Step 5: Solve for x
    x = 153,958,512,092.80/353,189.25
  6. Step 6: Final answer
    x = 435,909.39

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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.