Home / 329,200.20-493,504.65-129,656.70

Finding the Fourth Proportional to 329,200.20, 493,504.65 and 129,656.70

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Solution

The fourth proportional to 329,200.20, 493,504.65 and 129,656.70 is: 194,368.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,200.20 : 493,504.65 = 129,656.70 : x
  2. Step 2: Convert to fraction form
    329,200.20/493,504.65 = 129,656.70/x
  3. Step 3: Cross multiply
    329,200.20x = 493,504.65 × 129,656.70
  4. Step 4: Simplify right side
    329,200.20x = 63,986,184,353.66
  5. Step 5: Solve for x
    x = 63,986,184,353.66/329,200.20
  6. Step 6: Final answer
    x = 194,368.61

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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.