Home / 778,753.71-1,168,125.30-419,093.80

Finding the Fourth Proportional to 778,753.71, 1,168,125.30 and 419,093.80

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Solution

The fourth proportional to 778,753.71, 1,168,125.30 and 419,093.80 is: 628,637.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,753.71 : 1,168,125.30 = 419,093.80 : x
  2. Step 2: Convert to fraction form
    778,753.71/1,168,125.30 = 419,093.80/x
  3. Step 3: Cross multiply
    778,753.71x = 1,168,125.30 × 419,093.80
  4. Step 4: Simplify right side
    778,753.71x = 489,554,067,932.83
  5. Step 5: Solve for x
    x = 489,554,067,932.83/778,753.71
  6. Step 6: Final answer
    x = 628,637.86

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1.5x scale

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.