Home / 873,821.07-1,205,584.70-712,398.60

Finding the Fourth Proportional to 873,821.07, 1,205,584.70 and 712,398.60

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Solution

The fourth proportional to 873,821.07, 1,205,584.70 and 712,398.60 is: 982,874.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,821.07 : 1,205,584.70 = 712,398.60 : x
  2. Step 2: Convert to fraction form
    873,821.07/1,205,584.70 = 712,398.60/x
  3. Step 3: Cross multiply
    873,821.07x = 1,205,584.70 × 712,398.60
  4. Step 4: Simplify right side
    873,821.07x = 858,856,848,899.43
  5. Step 5: Solve for x
    x = 858,856,848,899.43/873,821.07
  6. Step 6: Final answer
    x = 982,874.96

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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.