Home / 827,666.40-1,241,499.60-491,743.20

Finding the Fourth Proportional to 827,666.40, 1,241,499.60 and 491,743.20

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Solution

The fourth proportional to 827,666.40, 1,241,499.60 and 491,743.20 is: 737,614.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,666.40 : 1,241,499.60 = 491,743.20 : x
  2. Step 2: Convert to fraction form
    827,666.40/1,241,499.60 = 491,743.20/x
  3. Step 3: Cross multiply
    827,666.40x = 1,241,499.60 × 491,743.20
  4. Step 4: Simplify right side
    827,666.40x = 610,498,986,102.72
  5. Step 5: Solve for x
    x = 610,498,986,102.72/827,666.40
  6. Step 6: Final answer
    x = 737,614.80

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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.