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Finding the Fourth Proportional to 262,496.40, 393,744.60 and 162,331.80

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Solution

The fourth proportional to 262,496.40, 393,744.60 and 162,331.80 is: 243,497.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,496.40 : 393,744.60 = 162,331.80 : x
  2. Step 2: Convert to fraction form
    262,496.40/393,744.60 = 162,331.80/x
  3. Step 3: Cross multiply
    262,496.40x = 393,744.60 × 162,331.80
  4. Step 4: Simplify right side
    262,496.40x = 63,917,269,658.28
  5. Step 5: Solve for x
    x = 63,917,269,658.28/262,496.40
  6. Step 6: Final answer
    x = 243,497.70

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1.5x scale

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.