Home / 830,199.40-1,245,299.10-269,233.90

Finding the Fourth Proportional to 830,199.40, 1,245,299.10 and 269,233.90

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Solution

The fourth proportional to 830,199.40, 1,245,299.10 and 269,233.90 is: 403,850.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,199.40 : 1,245,299.10 = 269,233.90 : x
  2. Step 2: Convert to fraction form
    830,199.40/1,245,299.10 = 269,233.90/x
  3. Step 3: Cross multiply
    830,199.40x = 1,245,299.10 × 269,233.90
  4. Step 4: Simplify right side
    830,199.40x = 335,276,733,359.49
  5. Step 5: Solve for x
    x = 335,276,733,359.49/830,199.40
  6. Step 6: Final answer
    x = 403,850.85

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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.