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Finding the Fourth Proportional to 662,168.80, 993,253.20 and 262,904.80

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Solution

The fourth proportional to 662,168.80, 993,253.20 and 262,904.80 is: 394,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,168.80 : 993,253.20 = 262,904.80 : x
  2. Step 2: Convert to fraction form
    662,168.80/993,253.20 = 262,904.80/x
  3. Step 3: Cross multiply
    662,168.80x = 993,253.20 × 262,904.80
  4. Step 4: Simplify right side
    662,168.80x = 261,131,033,895.36
  5. Step 5: Solve for x
    x = 261,131,033,895.36/662,168.80
  6. Step 6: Final answer
    x = 394,357.20

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Double scale
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Similar ratio
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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.