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Finding the Fourth Proportional to 341,136.40, 511,704.60 and 217,027.60

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Solution

The fourth proportional to 341,136.40, 511,704.60 and 217,027.60 is: 325,541.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,136.40 : 511,704.60 = 217,027.60 : x
  2. Step 2: Convert to fraction form
    341,136.40/511,704.60 = 217,027.60/x
  3. Step 3: Cross multiply
    341,136.40x = 511,704.60 × 217,027.60
  4. Step 4: Simplify right side
    341,136.40x = 111,054,021,246.96
  5. Step 5: Solve for x
    x = 111,054,021,246.96/341,136.40
  6. Step 6: Final answer
    x = 325,541.40

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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.