Home / 827,105.60-1,240,658.40-266,196.80

Finding the Fourth Proportional to 827,105.60, 1,240,658.40 and 266,196.80

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Solution

The fourth proportional to 827,105.60, 1,240,658.40 and 266,196.80 is: 399,295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,105.60 : 1,240,658.40 = 266,196.80 : x
  2. Step 2: Convert to fraction form
    827,105.60/1,240,658.40 = 266,196.80/x
  3. Step 3: Cross multiply
    827,105.60x = 1,240,658.40 × 266,196.80
  4. Step 4: Simplify right side
    827,105.60x = 330,259,295,973.12
  5. Step 5: Solve for x
    x = 330,259,295,973.12/827,105.60
  6. Step 6: Final answer
    x = 399,295.20

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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.