Home / 1,188,755.18-1,640,343.76-665,494.44

Finding the Fourth Proportional to 1,188,755.18, 1,640,343.76 and 665,494.44

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Solution

The fourth proportional to 1,188,755.18, 1,640,343.76 and 665,494.44 is: 918,304.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,755.18 : 1,640,343.76 = 665,494.44 : x
  2. Step 2: Convert to fraction form
    1,188,755.18/1,640,343.76 = 665,494.44/x
  3. Step 3: Cross multiply
    1,188,755.18x = 1,640,343.76 × 665,494.44
  4. Step 4: Simplify right side
    1,188,755.18x = 1,091,639,651,968.69
  5. Step 5: Solve for x
    x = 1,091,639,651,968.69/1,188,755.18
  6. Step 6: Final answer
    x = 918,304.85

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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.