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Finding the Fourth Proportional to 451,506.65, 622,991.33 and 267,711.17

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Solution

The fourth proportional to 451,506.65, 622,991.33 and 267,711.17 is: 369,389.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,506.65 : 622,991.33 = 267,711.17 : x
  2. Step 2: Convert to fraction form
    451,506.65/622,991.33 = 267,711.17/x
  3. Step 3: Cross multiply
    451,506.65x = 622,991.33 × 267,711.17
  4. Step 4: Simplify right side
    451,506.65x = 166,781,737,854.16
  5. Step 5: Solve for x
    x = 166,781,737,854.16/451,506.65
  6. Step 6: Final answer
    x = 369,389.33

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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.