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Finding the Fourth Proportional to 340,855.60, 511,283.40 and 193,399.60

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Solution

The fourth proportional to 340,855.60, 511,283.40 and 193,399.60 is: 290,099.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,855.60 : 511,283.40 = 193,399.60 : x
  2. Step 2: Convert to fraction form
    340,855.60/511,283.40 = 193,399.60/x
  3. Step 3: Cross multiply
    340,855.60x = 511,283.40 × 193,399.60
  4. Step 4: Simplify right side
    340,855.60x = 98,882,005,046.64
  5. Step 5: Solve for x
    x = 98,882,005,046.64/340,855.60
  6. Step 6: Final answer
    x = 290,099.40

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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.