Home / 919,821.14-1,379,732.08-413,791.06

Finding the Fourth Proportional to 919,821.14, 1,379,732.08 and 413,791.06

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Solution

The fourth proportional to 919,821.14, 1,379,732.08 and 413,791.06 is: 620,686.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,821.14 : 1,379,732.08 = 413,791.06 : x
  2. Step 2: Convert to fraction form
    919,821.14/1,379,732.08 = 413,791.06/x
  3. Step 3: Cross multiply
    919,821.14x = 1,379,732.08 × 413,791.06
  4. Step 4: Simplify right side
    919,821.14x = 570,920,799,899.21
  5. Step 5: Solve for x
    x = 570,920,799,899.21/919,821.14
  6. Step 6: Final answer
    x = 620,686.76

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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.