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Finding the Fourth Proportional to 368,124.10, 552,704.55 and 289,327.30

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Solution

The fourth proportional to 368,124.10, 552,704.55 and 289,327.30 is: 434,398.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,124.10 : 552,704.55 = 289,327.30 : x
  2. Step 2: Convert to fraction form
    368,124.10/552,704.55 = 289,327.30/x
  3. Step 3: Cross multiply
    368,124.10x = 552,704.55 × 289,327.30
  4. Step 4: Simplify right side
    368,124.10x = 159,912,515,149.22
  5. Step 5: Solve for x
    x = 159,912,515,149.22/368,124.10
  6. Step 6: Final answer
    x = 434,398.39

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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.