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Finding the Fourth Proportional to 363,609.40, 545,414.10 and 332,116.60

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Solution

The fourth proportional to 363,609.40, 545,414.10 and 332,116.60 is: 498,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,609.40 : 545,414.10 = 332,116.60 : x
  2. Step 2: Convert to fraction form
    363,609.40/545,414.10 = 332,116.60/x
  3. Step 3: Cross multiply
    363,609.40x = 545,414.10 × 332,116.60
  4. Step 4: Simplify right side
    363,609.40x = 181,141,076,484.06
  5. Step 5: Solve for x
    x = 181,141,076,484.06/363,609.40
  6. Step 6: Final answer
    x = 498,174.90

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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.