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Finding the Fourth Proportional to 478,352.99, 660,097.45 and 263,481.05

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Solution

The fourth proportional to 478,352.99, 660,097.45 and 263,481.05 is: 363,587.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,352.99 : 660,097.45 = 263,481.05 : x
  2. Step 2: Convert to fraction form
    478,352.99/660,097.45 = 263,481.05/x
  3. Step 3: Cross multiply
    478,352.99x = 660,097.45 × 263,481.05
  4. Step 4: Simplify right side
    478,352.99x = 173,923,171,207.92
  5. Step 5: Solve for x
    x = 173,923,171,207.92/478,352.99
  6. Step 6: Final answer
    x = 363,587.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.