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Finding the Fourth Proportional to 362,790.38, 500,446.41 and 217,557.48

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Solution

The fourth proportional to 362,790.38, 500,446.41 and 217,557.48 is: 300,106.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,790.38 : 500,446.41 = 217,557.48 : x
  2. Step 2: Convert to fraction form
    362,790.38/500,446.41 = 217,557.48/x
  3. Step 3: Cross multiply
    362,790.38x = 500,446.41 × 217,557.48
  4. Step 4: Simplify right side
    362,790.38x = 108,875,859,834.65
  5. Step 5: Solve for x
    x = 108,875,859,834.65/362,790.38
  6. Step 6: Final answer
    x = 300,106.80

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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.