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Finding the Fourth Proportional to 549,466.15, 824,954.18 and 279,775.48

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Solution

The fourth proportional to 549,466.15, 824,954.18 and 279,775.48 is: 420,047.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,466.15 : 824,954.18 = 279,775.48 : x
  2. Step 2: Convert to fraction form
    549,466.15/824,954.18 = 279,775.48/x
  3. Step 3: Cross multiply
    549,466.15x = 824,954.18 × 279,775.48
  4. Step 4: Simplify right side
    549,466.15x = 230,801,948,519.63
  5. Step 5: Solve for x
    x = 230,801,948,519.63/549,466.15
  6. Step 6: Final answer
    x = 420,047.62

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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.