Home / 671,121.05-926,119.78-384,441.80

Finding the Fourth Proportional to 671,121.05, 926,119.78 and 384,441.80

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Solution

The fourth proportional to 671,121.05, 926,119.78 and 384,441.80 is: 530,514.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,121.05 : 926,119.78 = 384,441.80 : x
  2. Step 2: Convert to fraction form
    671,121.05/926,119.78 = 384,441.80/x
  3. Step 3: Cross multiply
    671,121.05x = 926,119.78 × 384,441.80
  4. Step 4: Simplify right side
    671,121.05x = 356,039,149,647.10
  5. Step 5: Solve for x
    x = 356,039,149,647.10/671,121.05
  6. Step 6: Final answer
    x = 530,514.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.