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Finding the Fourth Proportional to 529,961.96, 731,346.98 and 303,608.36

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Solution

The fourth proportional to 529,961.96, 731,346.98 and 303,608.36 is: 418,979.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,961.96 : 731,346.98 = 303,608.36 : x
  2. Step 2: Convert to fraction form
    529,961.96/731,346.98 = 303,608.36/x
  3. Step 3: Cross multiply
    529,961.96x = 731,346.98 × 303,608.36
  4. Step 4: Simplify right side
    529,961.96x = 222,043,057,188.75
  5. Step 5: Solve for x
    x = 222,043,057,188.75/529,961.96
  6. Step 6: Final answer
    x = 418,979.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.