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Finding the Fourth Proportional to 276,366.70, 413,565.90 and 191,729.80

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Solution

The fourth proportional to 276,366.70, 413,565.90 and 191,729.80 is: 286,911.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,366.70 : 413,565.90 = 191,729.80 : x
  2. Step 2: Convert to fraction form
    276,366.70/413,565.90 = 191,729.80/x
  3. Step 3: Cross multiply
    276,366.70x = 413,565.90 × 191,729.80
  4. Step 4: Simplify right side
    276,366.70x = 79,292,907,293.82
  5. Step 5: Solve for x
    x = 79,292,907,293.82/276,366.70
  6. Step 6: Final answer
    x = 286,911.94

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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.