Home / 519,949.20-779,267.70-253,135.20

Finding the Fourth Proportional to 519,949.20, 779,267.70 and 253,135.20

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Solution

The fourth proportional to 519,949.20, 779,267.70 and 253,135.20 is: 379,383.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,949.20 : 779,267.70 = 253,135.20 : x
  2. Step 2: Convert to fraction form
    519,949.20/779,267.70 = 253,135.20/x
  3. Step 3: Cross multiply
    519,949.20x = 779,267.70 × 253,135.20
  4. Step 4: Simplify right side
    519,949.20x = 197,260,085,093.04
  5. Step 5: Solve for x
    x = 197,260,085,093.04/519,949.20
  6. Step 6: Final answer
    x = 379,383.38

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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.