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Finding the Fourth Proportional to 443,201.60, 664,024.80 and 363,886.40

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Solution

The fourth proportional to 443,201.60, 664,024.80 and 363,886.40 is: 545,191.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,201.60 : 664,024.80 = 363,886.40 : x
  2. Step 2: Convert to fraction form
    443,201.60/664,024.80 = 363,886.40/x
  3. Step 3: Cross multiply
    443,201.60x = 664,024.80 × 363,886.40
  4. Step 4: Simplify right side
    443,201.60x = 241,629,593,982.72
  5. Step 5: Solve for x
    x = 241,629,593,982.72/443,201.60
  6. Step 6: Final answer
    x = 545,191.16

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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.