Home / 921,997.77-1,382,207.82-353,786.64

Finding the Fourth Proportional to 921,997.77, 1,382,207.82 and 353,786.64

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Solution

The fourth proportional to 921,997.77, 1,382,207.82 and 353,786.64 is: 530,377.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,997.77 : 1,382,207.82 = 353,786.64 : x
  2. Step 2: Convert to fraction form
    921,997.77/1,382,207.82 = 353,786.64/x
  3. Step 3: Cross multiply
    921,997.77x = 1,382,207.82 × 353,786.64
  4. Step 4: Simplify right side
    921,997.77x = 489,006,660,419.53
  5. Step 5: Solve for x
    x = 489,006,660,419.53/921,997.77
  6. Step 6: Final answer
    x = 530,377.27

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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.