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Finding the Fourth Proportional to 582,091, 873,136.70 and 261,868.80

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Solution

The fourth proportional to 582,091, 873,136.70 and 261,868.80 is: 392,803.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,091 : 873,136.70 = 261,868.80 : x
  2. Step 2: Convert to fraction form
    582,091/873,136.70 = 261,868.80/x
  3. Step 3: Cross multiply
    582,091x = 873,136.70 × 261,868.80
  4. Step 4: Simplify right side
    582,091x = 228,647,259,864.96
  5. Step 5: Solve for x
    x = 228,647,259,864.96/582,091
  6. Step 6: Final answer
    x = 392,803.29

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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.