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Finding the Fourth Proportional to 549,025.83, 823,680.72 and 321,513.60

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Solution

The fourth proportional to 549,025.83, 823,680.72 and 321,513.60 is: 482,353.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,025.83 : 823,680.72 = 321,513.60 : x
  2. Step 2: Convert to fraction form
    549,025.83/823,680.72 = 321,513.60/x
  3. Step 3: Cross multiply
    549,025.83x = 823,680.72 × 321,513.60
  4. Step 4: Simplify right side
    549,025.83x = 264,824,553,537.79
  5. Step 5: Solve for x
    x = 264,824,553,537.79/549,025.83
  6. Step 6: Final answer
    x = 482,353.54

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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.