Home / 811,775.90-1,217,672.22-362,519.66

Finding the Fourth Proportional to 811,775.90, 1,217,672.22 and 362,519.66

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Solution

The fourth proportional to 811,775.90, 1,217,672.22 and 362,519.66 is: 543,783.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,775.90 : 1,217,672.22 = 362,519.66 : x
  2. Step 2: Convert to fraction form
    811,775.90/1,217,672.22 = 362,519.66/x
  3. Step 3: Cross multiply
    811,775.90x = 1,217,672.22 × 362,519.66
  4. Step 4: Simplify right side
    811,775.90x = 441,430,119,185.85
  5. Step 5: Solve for x
    x = 441,430,119,185.85/811,775.90
  6. Step 6: Final answer
    x = 543,783.23

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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.