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Finding the Fourth Proportional to 480,755.86, 720,813.45 and 264,716.32

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Solution

The fourth proportional to 480,755.86, 720,813.45 and 264,716.32 is: 396,898.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,755.86 : 720,813.45 = 264,716.32 : x
  2. Step 2: Convert to fraction form
    480,755.86/720,813.45 = 264,716.32/x
  3. Step 3: Cross multiply
    480,755.86x = 720,813.45 × 264,716.32
  4. Step 4: Simplify right side
    480,755.86x = 190,811,083,890.50
  5. Step 5: Solve for x
    x = 190,811,083,890.50/480,755.86
  6. Step 6: Final answer
    x = 396,898.09

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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.