Home / 513,206.20-769,589.11-176,280.76

Finding the Fourth Proportional to 513,206.20, 769,589.11 and 176,280.76

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Solution

The fourth proportional to 513,206.20, 769,589.11 and 176,280.76 is: 264,345.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,206.20 : 769,589.11 = 176,280.76 : x
  2. Step 2: Convert to fraction form
    513,206.20/769,589.11 = 176,280.76/x
  3. Step 3: Cross multiply
    513,206.20x = 769,589.11 × 176,280.76
  4. Step 4: Simplify right side
    513,206.20x = 135,663,753,198.52
  5. Step 5: Solve for x
    x = 135,663,753,198.52/513,206.20
  6. Step 6: Final answer
    x = 264,345.51

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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.