Home / 827,089.60-1,240,634.40-266,180.80

Finding the Fourth Proportional to 827,089.60, 1,240,634.40 and 266,180.80

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Solution

The fourth proportional to 827,089.60, 1,240,634.40 and 266,180.80 is: 399,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,089.60 : 1,240,634.40 = 266,180.80 : x
  2. Step 2: Convert to fraction form
    827,089.60/1,240,634.40 = 266,180.80/x
  3. Step 3: Cross multiply
    827,089.60x = 1,240,634.40 × 266,180.80
  4. Step 4: Simplify right side
    827,089.60x = 330,233,057,099.52
  5. Step 5: Solve for x
    x = 330,233,057,099.52/827,089.60
  6. Step 6: Final answer
    x = 399,271.20

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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.