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Finding the Fourth Proportional to 681,104.70, 939,737.43 and 474,141.15

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Solution

The fourth proportional to 681,104.70, 939,737.43 and 474,141.15 is: 654,184.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,104.70 : 939,737.43 = 474,141.15 : x
  2. Step 2: Convert to fraction form
    681,104.70/939,737.43 = 474,141.15/x
  3. Step 3: Cross multiply
    681,104.70x = 939,737.43 × 474,141.15
  4. Step 4: Simplify right side
    681,104.70x = 445,568,185,758.25
  5. Step 5: Solve for x
    x = 445,568,185,758.25/681,104.70
  6. Step 6: Final answer
    x = 654,184.57

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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.