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Finding the Fourth Proportional to 276,569.70, 413,870.40 and 191,932.80

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Solution

The fourth proportional to 276,569.70, 413,870.40 and 191,932.80 is: 287,216.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,569.70 : 413,870.40 = 191,932.80 : x
  2. Step 2: Convert to fraction form
    276,569.70/413,870.40 = 191,932.80/x
  3. Step 3: Cross multiply
    276,569.70x = 413,870.40 × 191,932.80
  4. Step 4: Simplify right side
    276,569.70x = 79,435,304,709.12
  5. Step 5: Solve for x
    x = 79,435,304,709.12/276,569.70
  6. Step 6: Final answer
    x = 287,216.22

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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.