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Finding the Fourth Proportional to 483,091.94, 724,791 and 376,840.20

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Solution

The fourth proportional to 483,091.94, 724,791 and 376,840.20 is: 565,379.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,091.94 : 724,791 = 376,840.20 : x
  2. Step 2: Convert to fraction form
    483,091.94/724,791 = 376,840.20/x
  3. Step 3: Cross multiply
    483,091.94x = 724,791 × 376,840.20
  4. Step 4: Simplify right side
    483,091.94x = 273,130,385,398.20
  5. Step 5: Solve for x
    x = 273,130,385,398.20/483,091.94
  6. Step 6: Final answer
    x = 565,379.72

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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.