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Finding the Fourth Proportional to 492,858.60, 739,287.90 and 177,325.80

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Solution

The fourth proportional to 492,858.60, 739,287.90 and 177,325.80 is: 265,988.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,858.60 : 739,287.90 = 177,325.80 : x
  2. Step 2: Convert to fraction form
    492,858.60/739,287.90 = 177,325.80/x
  3. Step 3: Cross multiply
    492,858.60x = 739,287.90 × 177,325.80
  4. Step 4: Simplify right side
    492,858.60x = 131,094,818,297.82
  5. Step 5: Solve for x
    x = 131,094,818,297.82/492,858.60
  6. Step 6: Final answer
    x = 265,988.70

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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.