Home / 657,780.87-986,794.33-208,381.08

Finding the Fourth Proportional to 657,780.87, 986,794.33 and 208,381.08

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Solution

The fourth proportional to 657,780.87, 986,794.33 and 208,381.08 is: 312,610.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,780.87 : 986,794.33 = 208,381.08 : x
  2. Step 2: Convert to fraction form
    657,780.87/986,794.33 = 208,381.08/x
  3. Step 3: Cross multiply
    657,780.87x = 986,794.33 × 208,381.08
  4. Step 4: Simplify right side
    657,780.87x = 205,629,268,223.28
  5. Step 5: Solve for x
    x = 205,629,268,223.28/657,780.87
  6. Step 6: Final answer
    x = 312,610.59

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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.