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Finding the Fourth Proportional to 400,772.86, 601,198.78 and 116,465.90

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Solution

The fourth proportional to 400,772.86, 601,198.78 and 116,465.90 is: 174,710.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,772.86 : 601,198.78 = 116,465.90 : x
  2. Step 2: Convert to fraction form
    400,772.86/601,198.78 = 116,465.90/x
  3. Step 3: Cross multiply
    400,772.86x = 601,198.78 × 116,465.90
  4. Step 4: Simplify right side
    400,772.86x = 70,019,156,991.60
  5. Step 5: Solve for x
    x = 70,019,156,991.60/400,772.86
  6. Step 6: Final answer
    x = 174,710.33

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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.