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Finding the Fourth Proportional to 276,329.70, 413,510.40 and 191,692.80

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Solution

The fourth proportional to 276,329.70, 413,510.40 and 191,692.80 is: 286,856.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,329.70 : 413,510.40 = 191,692.80 : x
  2. Step 2: Convert to fraction form
    276,329.70/413,510.40 = 191,692.80/x
  3. Step 3: Cross multiply
    276,329.70x = 413,510.40 × 191,692.80
  4. Step 4: Simplify right side
    276,329.70x = 79,266,966,405.12
  5. Step 5: Solve for x
    x = 79,266,966,405.12/276,329.70
  6. Step 6: Final answer
    x = 286,856.48

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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.