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Finding the Fourth Proportional to 531,976.60, 797,964.90 and 157,999.60

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Solution

The fourth proportional to 531,976.60, 797,964.90 and 157,999.60 is: 236,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,976.60 : 797,964.90 = 157,999.60 : x
  2. Step 2: Convert to fraction form
    531,976.60/797,964.90 = 157,999.60/x
  3. Step 3: Cross multiply
    531,976.60x = 797,964.90 × 157,999.60
  4. Step 4: Simplify right side
    531,976.60x = 126,078,135,014.04
  5. Step 5: Solve for x
    x = 126,078,135,014.04/531,976.60
  6. Step 6: Final answer
    x = 236,999.40

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Similar ratio
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1.5x scale

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.