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Finding the Fourth Proportional to 327,335.66, 490,555.58 and 247,307.86

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Solution

The fourth proportional to 327,335.66, 490,555.58 and 247,307.86 is: 370,623.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,335.66 : 490,555.58 = 247,307.86 : x
  2. Step 2: Convert to fraction form
    327,335.66/490,555.58 = 247,307.86/x
  3. Step 3: Cross multiply
    327,335.66x = 490,555.58 × 247,307.86
  4. Step 4: Simplify right side
    327,335.66x = 121,318,250,092.74
  5. Step 5: Solve for x
    x = 121,318,250,092.74/327,335.66
  6. Step 6: Final answer
    x = 370,623.39

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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.