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Finding the Fourth Proportional to 565,363.11, 780,382.89 and 361,961.85

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Solution

The fourth proportional to 565,363.11, 780,382.89 and 361,961.85 is: 499,623.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,363.11 : 780,382.89 = 361,961.85 : x
  2. Step 2: Convert to fraction form
    565,363.11/780,382.89 = 361,961.85/x
  3. Step 3: Cross multiply
    565,363.11x = 780,382.89 × 361,961.85
  4. Step 4: Simplify right side
    565,363.11x = 282,468,834,572.75
  5. Step 5: Solve for x
    x = 282,468,834,572.75/565,363.11
  6. Step 6: Final answer
    x = 499,623.75

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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.