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Finding the Fourth Proportional to 422,586.72, 583,122.24 and 261,545.76

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Solution

The fourth proportional to 422,586.72, 583,122.24 and 261,545.76 is: 360,903.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,586.72 : 583,122.24 = 261,545.76 : x
  2. Step 2: Convert to fraction form
    422,586.72/583,122.24 = 261,545.76/x
  3. Step 3: Cross multiply
    422,586.72x = 583,122.24 × 261,545.76
  4. Step 4: Simplify right side
    422,586.72x = 152,513,149,433.70
  5. Step 5: Solve for x
    x = 152,513,149,433.70/422,586.72
  6. Step 6: Final answer
    x = 360,903.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.