Home / 685,733.18-1,028,667.42-236,394.86

Finding the Fourth Proportional to 685,733.18, 1,028,667.42 and 236,394.86

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Solution

The fourth proportional to 685,733.18, 1,028,667.42 and 236,394.86 is: 354,615.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,733.18 : 1,028,667.42 = 236,394.86 : x
  2. Step 2: Convert to fraction form
    685,733.18/1,028,667.42 = 236,394.86/x
  3. Step 3: Cross multiply
    685,733.18x = 1,028,667.42 × 236,394.86
  4. Step 4: Simplify right side
    685,733.18x = 243,171,685,594.12
  5. Step 5: Solve for x
    x = 243,171,685,594.12/685,733.18
  6. Step 6: Final answer
    x = 354,615.61

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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.