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Finding the Fourth Proportional to 276,007.80, 413,136.90 and 276,007.80

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Solution

The fourth proportional to 276,007.80, 413,136.90 and 276,007.80 is: 413,136.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,007.80 : 413,136.90 = 276,007.80 : x
  2. Step 2: Convert to fraction form
    276,007.80/413,136.90 = 276,007.80/x
  3. Step 3: Cross multiply
    276,007.80x = 413,136.90 × 276,007.80
  4. Step 4: Simplify right side
    276,007.80x = 114,029,006,867.82
  5. Step 5: Solve for x
    x = 114,029,006,867.82/276,007.80
  6. Step 6: Final answer
    x = 413,136.90

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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.