Home / 686,474.40-1,029,601.44-187,721.76

Finding the Fourth Proportional to 686,474.40, 1,029,601.44 and 187,721.76

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Solution

The fourth proportional to 686,474.40, 1,029,601.44 and 187,721.76 is: 281,552.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,474.40 : 1,029,601.44 = 187,721.76 : x
  2. Step 2: Convert to fraction form
    686,474.40/1,029,601.44 = 187,721.76/x
  3. Step 3: Cross multiply
    686,474.40x = 1,029,601.44 × 187,721.76
  4. Step 4: Simplify right side
    686,474.40x = 193,278,594,415.33
  5. Step 5: Solve for x
    x = 193,278,594,415.33/686,474.40
  6. Step 6: Final answer
    x = 281,552.52

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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.