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Finding the Fourth Proportional to 264,718.40, 397,077.60 and 219,617.60

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Solution

The fourth proportional to 264,718.40, 397,077.60 and 219,617.60 is: 329,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,718.40 : 397,077.60 = 219,617.60 : x
  2. Step 2: Convert to fraction form
    264,718.40/397,077.60 = 219,617.60/x
  3. Step 3: Cross multiply
    264,718.40x = 397,077.60 × 219,617.60
  4. Step 4: Simplify right side
    264,718.40x = 87,205,229,525.76
  5. Step 5: Solve for x
    x = 87,205,229,525.76/264,718.40
  6. Step 6: Final answer
    x = 329,426.40

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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.