Home / 351,977.28-527,960.52-85,738.20

Finding the Fourth Proportional to 351,977.28, 527,960.52 and 85,738.20

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Solution

The fourth proportional to 351,977.28, 527,960.52 and 85,738.20 is: 128,605.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,977.28 : 527,960.52 = 85,738.20 : x
  2. Step 2: Convert to fraction form
    351,977.28/527,960.52 = 85,738.20/x
  3. Step 3: Cross multiply
    351,977.28x = 527,960.52 × 85,738.20
  4. Step 4: Simplify right side
    351,977.28x = 45,266,384,655.86
  5. Step 5: Solve for x
    x = 45,266,384,655.86/351,977.28
  6. Step 6: Final answer
    x = 128,605.98

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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.