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Finding the Fourth Proportional to 422,663.87, 583,300.04 and 250,683.66

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Solution

The fourth proportional to 422,663.87, 583,300.04 and 250,683.66 is: 345,957.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,663.87 : 583,300.04 = 250,683.66 : x
  2. Step 2: Convert to fraction form
    422,663.87/583,300.04 = 250,683.66/x
  3. Step 3: Cross multiply
    422,663.87x = 583,300.04 × 250,683.66
  4. Step 4: Simplify right side
    422,663.87x = 146,223,787,651.93
  5. Step 5: Solve for x
    x = 146,223,787,651.93/422,663.87
  6. Step 6: Final answer
    x = 345,957.62

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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.