Home / 827,606.40-1,241,409.60-491,683.20

Finding the Fourth Proportional to 827,606.40, 1,241,409.60 and 491,683.20

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Solution

The fourth proportional to 827,606.40, 1,241,409.60 and 491,683.20 is: 737,524.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,606.40 : 1,241,409.60 = 491,683.20 : x
  2. Step 2: Convert to fraction form
    827,606.40/1,241,409.60 = 491,683.20/x
  3. Step 3: Cross multiply
    827,606.40x = 1,241,409.60 × 491,683.20
  4. Step 4: Simplify right side
    827,606.40x = 610,380,244,638.72
  5. Step 5: Solve for x
    x = 610,380,244,638.72/827,606.40
  6. Step 6: Final answer
    x = 737,524.80

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Double scale
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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.