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Finding the Fourth Proportional to 363,128.40, 544,526.20 and 194,622.80

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Solution

The fourth proportional to 363,128.40, 544,526.20 and 194,622.80 is: 291,845.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,128.40 : 544,526.20 = 194,622.80 : x
  2. Step 2: Convert to fraction form
    363,128.40/544,526.20 = 194,622.80/x
  3. Step 3: Cross multiply
    363,128.40x = 544,526.20 × 194,622.80
  4. Step 4: Simplify right side
    363,128.40x = 105,977,213,717.36
  5. Step 5: Solve for x
    x = 105,977,213,717.36/363,128.40
  6. Step 6: Final answer
    x = 291,845.02

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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.