Home / 305,524.35-458,341.20-128,049.30

Finding the Fourth Proportional to 305,524.35, 458,341.20 and 128,049.30

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Solution

The fourth proportional to 305,524.35, 458,341.20 and 128,049.30 is: 192,096.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,524.35 : 458,341.20 = 128,049.30 : x
  2. Step 2: Convert to fraction form
    305,524.35/458,341.20 = 128,049.30/x
  3. Step 3: Cross multiply
    305,524.35x = 458,341.20 × 128,049.30
  4. Step 4: Simplify right side
    305,524.35x = 58,690,269,821.16
  5. Step 5: Solve for x
    x = 58,690,269,821.16/305,524.35
  6. Step 6: Final answer
    x = 192,096.87

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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.