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Finding the Fourth Proportional to 549,616.88, 824,230.92 and 261,394.58

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Solution

The fourth proportional to 549,616.88, 824,230.92 and 261,394.58 is: 391,999.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,616.88 : 824,230.92 = 261,394.58 : x
  2. Step 2: Convert to fraction form
    549,616.88/824,230.92 = 261,394.58/x
  3. Step 3: Cross multiply
    549,616.88x = 824,230.92 × 261,394.58
  4. Step 4: Simplify right side
    549,616.88x = 215,449,495,156.41
  5. Step 5: Solve for x
    x = 215,449,495,156.41/549,616.88
  6. Step 6: Final answer
    x = 391,999.41

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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.