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Finding the Fourth Proportional to 276,565.70, 413,864.40 and 191,928.80

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Solution

The fourth proportional to 276,565.70, 413,864.40 and 191,928.80 is: 287,210.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,565.70 : 413,864.40 = 191,928.80 : x
  2. Step 2: Convert to fraction form
    276,565.70/413,864.40 = 191,928.80/x
  3. Step 3: Cross multiply
    276,565.70x = 413,864.40 × 191,928.80
  4. Step 4: Simplify right side
    276,565.70x = 79,432,497,654.72
  5. Step 5: Solve for x
    x = 79,432,497,654.72/276,565.70
  6. Step 6: Final answer
    x = 287,210.23

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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.