Home / 382,811.67-528,249.57-221,677.16

Finding the Fourth Proportional to 382,811.67, 528,249.57 and 221,677.16

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Solution

The fourth proportional to 382,811.67, 528,249.57 and 221,677.16 is: 305,896.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,811.67 : 528,249.57 = 221,677.16 : x
  2. Step 2: Convert to fraction form
    382,811.67/528,249.57 = 221,677.16/x
  3. Step 3: Cross multiply
    382,811.67x = 528,249.57 × 221,677.16
  4. Step 4: Simplify right side
    382,811.67x = 117,100,861,807.57
  5. Step 5: Solve for x
    x = 117,100,861,807.57/382,811.67
  6. Step 6: Final answer
    x = 305,896.79

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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.