Home / 691,409.80-1,037,114.70-192,773.80

Finding the Fourth Proportional to 691,409.80, 1,037,114.70 and 192,773.80

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Solution

The fourth proportional to 691,409.80, 1,037,114.70 and 192,773.80 is: 289,160.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,409.80 : 1,037,114.70 = 192,773.80 : x
  2. Step 2: Convert to fraction form
    691,409.80/1,037,114.70 = 192,773.80/x
  3. Step 3: Cross multiply
    691,409.80x = 1,037,114.70 × 192,773.80
  4. Step 4: Simplify right side
    691,409.80x = 199,928,541,754.86
  5. Step 5: Solve for x
    x = 199,928,541,754.86/691,409.80
  6. Step 6: Final answer
    x = 289,160.70

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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.