Home / 691,333.40-1,037,000.10-218,163.80

Finding the Fourth Proportional to 691,333.40, 1,037,000.10 and 218,163.80

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Solution

The fourth proportional to 691,333.40, 1,037,000.10 and 218,163.80 is: 327,245.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,333.40 : 1,037,000.10 = 218,163.80 : x
  2. Step 2: Convert to fraction form
    691,333.40/1,037,000.10 = 218,163.80/x
  3. Step 3: Cross multiply
    691,333.40x = 1,037,000.10 × 218,163.80
  4. Step 4: Simplify right side
    691,333.40x = 226,235,882,416.38
  5. Step 5: Solve for x
    x = 226,235,882,416.38/691,333.40
  6. Step 6: Final answer
    x = 327,245.70

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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.