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Finding the Fourth Proportional to 478,328.50, 660,093.24 and 263,468.56

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Solution

The fourth proportional to 478,328.50, 660,093.24 and 263,468.56 is: 363,586.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,328.50 : 660,093.24 = 263,468.56 : x
  2. Step 2: Convert to fraction form
    478,328.50/660,093.24 = 263,468.56/x
  3. Step 3: Cross multiply
    478,328.50x = 660,093.24 × 263,468.56
  4. Step 4: Simplify right side
    478,328.50x = 173,913,815,408.53
  5. Step 5: Solve for x
    x = 173,913,815,408.53/478,328.50
  6. Step 6: Final answer
    x = 363,586.56

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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.