Home / 521,767.35-782,195.40-202,137.30

Finding the Fourth Proportional to 521,767.35, 782,195.40 and 202,137.30

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Solution

The fourth proportional to 521,767.35, 782,195.40 and 202,137.30 is: 303,029.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,767.35 : 782,195.40 = 202,137.30 : x
  2. Step 2: Convert to fraction form
    521,767.35/782,195.40 = 202,137.30/x
  3. Step 3: Cross multiply
    521,767.35x = 782,195.40 × 202,137.30
  4. Step 4: Simplify right side
    521,767.35x = 158,110,866,228.42
  5. Step 5: Solve for x
    x = 158,110,866,228.42/521,767.35
  6. Step 6: Final answer
    x = 303,029.44

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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.