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Finding the Fourth Proportional to 363,735,449.60, 545,603,174.40 and 218,616,627.20

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Solution

The fourth proportional to 363,735,449.60, 545,603,174.40 and 218,616,627.20 is: 327,924,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,735,449.60 : 545,603,174.40 = 218,616,627.20 : x
  2. Step 2: Convert to fraction form
    363,735,449.60/545,603,174.40 = 218,616,627.20/x
  3. Step 3: Cross multiply
    363,735,449.60x = 545,603,174.40 × 218,616,627.20
  4. Step 4: Simplify right side
    363,735,449.60x = 119,277,925,776,941,376
  5. Step 5: Solve for x
    x = 119,277,925,776,941,376/363,735,449.60
  6. Step 6: Final answer
    x = 327,924,940.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.