Home / 921,053.76-1,381,766.94-388,575.96

Finding the Fourth Proportional to 921,053.76, 1,381,766.94 and 388,575.96

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Solution

The fourth proportional to 921,053.76, 1,381,766.94 and 388,575.96 is: 582,942.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,053.76 : 1,381,766.94 = 388,575.96 : x
  2. Step 2: Convert to fraction form
    921,053.76/1,381,766.94 = 388,575.96/x
  3. Step 3: Cross multiply
    921,053.76x = 1,381,766.94 × 388,575.96
  4. Step 4: Simplify right side
    921,053.76x = 536,921,415,206.76
  5. Step 5: Solve for x
    x = 536,921,415,206.76/921,053.76
  6. Step 6: Final answer
    x = 582,942.54

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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.