Home / 419,986.35-579,581.73-228,999.74

Finding the Fourth Proportional to 419,986.35, 579,581.73 and 228,999.74

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Solution

The fourth proportional to 419,986.35, 579,581.73 and 228,999.74 is: 316,019.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,986.35 : 579,581.73 = 228,999.74 : x
  2. Step 2: Convert to fraction form
    419,986.35/579,581.73 = 228,999.74/x
  3. Step 3: Cross multiply
    419,986.35x = 579,581.73 × 228,999.74
  4. Step 4: Simplify right side
    419,986.35x = 132,724,062,580.84
  5. Step 5: Solve for x
    x = 132,724,062,580.84/419,986.35
  6. Step 6: Final answer
    x = 316,019.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.