Home / 519,929.20-779,237.70-253,115.20

Finding the Fourth Proportional to 519,929.20, 779,237.70 and 253,115.20

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Solution

The fourth proportional to 519,929.20, 779,237.70 and 253,115.20 is: 379,353.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,929.20 : 779,237.70 = 253,115.20 : x
  2. Step 2: Convert to fraction form
    519,929.20/779,237.70 = 253,115.20/x
  3. Step 3: Cross multiply
    519,929.20x = 779,237.70 × 253,115.20
  4. Step 4: Simplify right side
    519,929.20x = 197,236,906,283.04
  5. Step 5: Solve for x
    x = 197,236,906,283.04/519,929.20
  6. Step 6: Final answer
    x = 379,353.39

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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.