Home / 818,816.43-1,228,055.26-219,635.13

Finding the Fourth Proportional to 818,816.43, 1,228,055.26 and 219,635.13

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Solution

The fourth proportional to 818,816.43, 1,228,055.26 and 219,635.13 is: 329,407.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,816.43 : 1,228,055.26 = 219,635.13 : x
  2. Step 2: Convert to fraction form
    818,816.43/1,228,055.26 = 219,635.13/x
  3. Step 3: Cross multiply
    818,816.43x = 1,228,055.26 × 219,635.13
  4. Step 4: Simplify right side
    818,816.43x = 269,724,076,677.28
  5. Step 5: Solve for x
    x = 269,724,076,677.28/818,816.43
  6. Step 6: Final answer
    x = 329,407.26

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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.