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Finding the Fourth Proportional to 446,996.40, 670,792.74 and 162,686.87

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Solution

The fourth proportional to 446,996.40, 670,792.74 and 162,686.87 is: 244,138.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,996.40 : 670,792.74 = 162,686.87 : x
  2. Step 2: Convert to fraction form
    446,996.40/670,792.74 = 162,686.87/x
  3. Step 3: Cross multiply
    446,996.40x = 670,792.74 × 162,686.87
  4. Step 4: Simplify right side
    446,996.40x = 109,129,171,289.32
  5. Step 5: Solve for x
    x = 109,129,171,289.32/446,996.40
  6. Step 6: Final answer
    x = 244,138.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.