Home / 519,983.38-780,040.68-178,493.35

Finding the Fourth Proportional to 519,983.38, 780,040.68 and 178,493.35

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Solution

The fourth proportional to 519,983.38, 780,040.68 and 178,493.35 is: 267,762.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,983.38 : 780,040.68 = 178,493.35 : x
  2. Step 2: Convert to fraction form
    519,983.38/780,040.68 = 178,493.35/x
  3. Step 3: Cross multiply
    519,983.38x = 780,040.68 × 178,493.35
  4. Step 4: Simplify right side
    519,983.38x = 139,232,073,217.01
  5. Step 5: Solve for x
    x = 139,232,073,217.01/519,983.38
  6. Step 6: Final answer
    x = 267,762.55

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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.