Home / 515,719.87-773,579.11-195,871.12

Finding the Fourth Proportional to 515,719.87, 773,579.11 and 195,871.12

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Solution

The fourth proportional to 515,719.87, 773,579.11 and 195,871.12 is: 293,806.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,719.87 : 773,579.11 = 195,871.12 : x
  2. Step 2: Convert to fraction form
    515,719.87/773,579.11 = 195,871.12/x
  3. Step 3: Cross multiply
    515,719.87x = 773,579.11 × 195,871.12
  4. Step 4: Simplify right side
    515,719.87x = 151,521,806,684.30
  5. Step 5: Solve for x
    x = 151,521,806,684.30/515,719.87
  6. Step 6: Final answer
    x = 293,806.42

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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.