Home / 878,135.67-1,211,383.40-587,759.37

Finding the Fourth Proportional to 878,135.67, 1,211,383.40 and 587,759.37

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Solution

The fourth proportional to 878,135.67, 1,211,383.40 and 587,759.37 is: 810,810.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,135.67 : 1,211,383.40 = 587,759.37 : x
  2. Step 2: Convert to fraction form
    878,135.67/1,211,383.40 = 587,759.37/x
  3. Step 3: Cross multiply
    878,135.67x = 1,211,383.40 × 587,759.37
  4. Step 4: Simplify right side
    878,135.67x = 712,001,941,073.66
  5. Step 5: Solve for x
    x = 712,001,941,073.66/878,135.67
  6. Step 6: Final answer
    x = 810,810.86

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1.5x scale

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.