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Finding the Fourth Proportional to 492,712.80, 739,069.20 and 374,614.80

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Solution

The fourth proportional to 492,712.80, 739,069.20 and 374,614.80 is: 561,922.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,712.80 : 739,069.20 = 374,614.80 : x
  2. Step 2: Convert to fraction form
    492,712.80/739,069.20 = 374,614.80/x
  3. Step 3: Cross multiply
    492,712.80x = 739,069.20 × 374,614.80
  4. Step 4: Simplify right side
    492,712.80x = 276,866,260,544.16
  5. Step 5: Solve for x
    x = 276,866,260,544.16/492,712.80
  6. Step 6: Final answer
    x = 561,922.20

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Similar ratio
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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.