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Finding the Fourth Proportional to 363,443.46, 545,168.16 and 126,785.76

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Solution

The fourth proportional to 363,443.46, 545,168.16 and 126,785.76 is: 190,179.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,443.46 : 545,168.16 = 126,785.76 : x
  2. Step 2: Convert to fraction form
    363,443.46/545,168.16 = 126,785.76/x
  3. Step 3: Cross multiply
    363,443.46x = 545,168.16 × 126,785.76
  4. Step 4: Simplify right side
    363,443.46x = 69,119,559,493.40
  5. Step 5: Solve for x
    x = 69,119,559,493.40/363,443.46
  6. Step 6: Final answer
    x = 190,179.68

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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.