Home / 409,078.35-613,570.55-156,353.22

Finding the Fourth Proportional to 409,078.35, 613,570.55 and 156,353.22

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Solution

The fourth proportional to 409,078.35, 613,570.55 and 156,353.22 is: 234,511.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,078.35 : 613,570.55 = 156,353.22 : x
  2. Step 2: Convert to fraction form
    409,078.35/613,570.55 = 156,353.22/x
  3. Step 3: Cross multiply
    409,078.35x = 613,570.55 × 156,353.22
  4. Step 4: Simplify right side
    409,078.35x = 95,933,730,407.90
  5. Step 5: Solve for x
    x = 95,933,730,407.90/409,078.35
  6. Step 6: Final answer
    x = 234,511.87

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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.